MCPE-41803Ghasts become stuck in columns of lava
Once a ghast has randomly floated into a column of falling lava, it becomes stuck there for a long time (possibly permanently). It will move up very slightly but will not move horizontally at all. If it can be nudged out of contact with the lava, it resumes its normal wandering.
Steps to reproduce:
1. Go to the Nether and scout for a location having a large, open area with many columns of lava dropping from the Nether ceiling.
2. Wait for ghasts to spawn and watch for one that flies into a lava column.
Expected result:
The ghast floats through the lava as if it weren't there.
Actual result:
The ghast floats through the lava until it is just about to exit contact with it. It then stops making horizontal progress as if impaled, and slowly works its way up the column.
Linked Issues
is duplicated by4
- Unresolved
![[MCPE Mod] Auldrick](../../../data/avatars/users/10122.svg)
[MCPE Mod] Auldrick- 27
- 8
- Community Consensus
- 221387
- Windows
1.20.30.20 Preview - 1.21.31 Hotfix
1.20.30.20 Preview 1.16.220.50 Beta 1.16.210.58 Beta 1.16.210.55 Beta 1.16.210.54 Beta 1.16.210.53 Beta 1.16.200.57 Beta 1.16.200.53 Beta 1.16.100.57 Beta 1.16.100.56 Beta 1.16.100.54 Beta 1.16.100.52 Beta 1.16.100.50 Beta 1.16.20.53 Beta 1.16.20.52 Beta 1.16.0.68 Beta 1.16.0.67 Beta 1.16.0.66 Beta 1.16.0.64 Beta 1.16.0.63 Beta 1.16.0.61 Beta 1.16.0.51 Beta 1.13.1 1.9.0 1.10.0.4 Beta 1.11.0.3 Beta 1.11.0.4 Beta 1.11.0.9 Beta 1.10.0 1.11.4 1.14.0 1.14.60 Hotfix 1.16.0 1.16.10 1.16.20 1.16.40 Hotfix 1.16.100.59 Beta 1.16.100 1.16.200 1.17.0 1.19.0 1.19.51 1.20.0 1.21.2 Hotfix 1.21.31 Hotfix
Created Issue:
Ghasts become stuck in columns of lava
Once a ghast has randomly floated into a column of falling lava, it becomes stuck there for a long time (possibly permanently). It will move up and down very slightly but will not move horizontally at all. If it can be nudged out of contact with the lava, it resumes its normal wandering.
Steps to reproduce:
1. Go to the Nether and scout for a location having a large, open area with many columns of lava dropping from the Nether ceiling.
2. Wait for ghasts to spawn and watch for one that flies into a lava column.Expected result:
The ghast floats through the lava as if it weren't there.Actual result:
The ghast floats through the lava until it is just about to exit contact with it. It then stops making horizontal progress as if impaled, although it may slowly work its way up the column.
Once a ghast has randomly floated into a column of falling lava, it becomes stuck there for a long time (possibly permanently). It will move up
and downvery slightly but will not move horizontally at all. If it can be nudged out of contact with the lava, it resumes its normal wandering.Steps to reproduce:
1. Go to the Nether and scout for a location having a large, open area with many columns of lava dropping from the Nether ceiling.
2. Wait for ghasts to spawn and watch for one that flies into a lava column.Expected result:
The ghast floats through the lava as if it weren't there.Actual result:
The ghast floats through the lava until it is just about to exit contact with it. It then stops making horizontal progress as if impaled, although it mayslowly work its way up the column.Once a ghast has randomly floated into a column of falling lava, it becomes stuck there for a long time (possibly permanently). It will move up very slightly but will not move horizontally at all. If it can be nudged out of contact with the lava, it resumes its normal wandering.
Steps to reproduce:
1. Go to the Nether and scout for a location having a large, open area with many columns of lava dropping from the Nether ceiling.
2. Wait for ghasts to spawn and watch for one that flies into a lava column.Expected result:
The ghast floats through the lava as if it weren't there.Actual result:
The ghast floats through the lava until it is just about to exit contact with it. It then stops making horizontal progress as if impaled, a slowly works its way up the column.
![[Mojang] Mega_Spud (Jay Wells)](../../../data/avatars/users/92696.png){kind=small}
![[Mod] OcelotOnesie](../../../data/avatars/users/43220.png){kind=small}
is duplicated by
is duplicated by
![[Bot] Arisa](../../../data/avatars/users/43007.png){kind=small}
Once a ghast has randomly floated into a column of falling lava, it becomes stuck there for a long time (possibly permanently). It will move up very slightly but will not move horizontally at all. If it can be nudged out of contact with the lava, it resumes its normal wandering.
Steps to reproduce:
1. Go to the Nether and scout for a location having a large, open area with many columns of lava dropping from the Nether ceiling.
2. Wait for ghasts to spawn and watch for one that flies into a lava column.Expected result:
The ghast floats through the lava as if it weren't there.Actual result:
The ghast floats through the lava until it is just about to exit contact with it. It then stops making horizontal progress as if impaled, and slowly works its way up the column.
relates to
![[Mod] GoldenHelmet](../../../data/avatars/users/18951.svg){kind=small}
is duplicated by
relates to
relates to
is duplicated by
Thank you for your report!
We're actually already tracking this issue at MCPE-41803, so I resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
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Thank you for your report!
We're actually already tracking this issue at MCPE-41803, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – ✍️ Feedback and Suggestions – 📖 Game Wiki
Separate Bug Report created upon request of Moderator Auldrick.
This bug is indirectly related to MCPE-41803 through the action of the Ghast itself entering and being impaled by a lavafall, not related to the pathfinding of the Ghast itself.
On Windows 10 Custom Servers, and on all iterations (Platforms, Windows 10; Xbox One, PS4, etc.) of Bedrock Realms in Minecraft Bedrock Hotfix 1.16.201, when a Ghast enters a lavafall and becomes impaled and stuck, it creates a large amount of lag, negatively impacting the gameplay experience.
The lag creates issues in the area where this occurs, not limited to, but including:
All Nether Mobs moving unusually slow, and even at times coming to a halt for a short duration. This includes all of the following:
- All Piglin variants (Piglins and Piglin Brutes)
- Zombified Piglins
- All skeleton variants (Wither and Regular)
- Blazes
- Magma Cubes of all sizes
- All Hoglin variants (Hoglin and Zoglin)
- Endermen
- Other Ghasts who are not impaled by Lavafalls
Additionally, this lag negatively impacts the use of Tridents, where a Trident has to be held back ready to throw for 10-30 seconds before being thrown, as if just cocked back and thrown almost instantly as normal, it automatically returns to the player's inventory instead due to the lag.
Mining during this lag is spotty as well. Sometimes when mining blocks during this lag, they will disappear without dropping a block and then reappear seconds later.
Player movement is unaffected by this lag, and block placement is only affected by a delay in the block placing sound which occurs sometimes.
When the Ghast impaled in the lavafall is killed or removed from the lavafall, the lag dissipates and the gameplay returns to normal.
Steps to Reproduce:
- Log onto a Realm on Minecraft Bedrock Edition Hotfix 1.16.201 on any platform or onto a custom server on Windows 10.
- Enter the Nether and look for Ghasts around lavafalls and watch until one flies into a lavafall.
- Try to use a Trident as normal to attempt to kill it, mine blocks, and observe other Nether Mobs while the Ghast is stuck in the lavafall.
Observed Results:
Extreme lag occurs until the Ghast stuck in the lavafall is killed or removed from the lavafall, causing negative effects on gameplay experience.
Expected Results:
No lag should be created when a Ghast is impaled and stuck in a lavafall. The game should function as normal as intended by the developer, where Tridents work as normal, mobs move as normal, and mining is normal.
It seems this bug can be triggered without player intervention by MCPE-41803. The video linked on MCPE-171681 shows pretty clearly that extreme lag occurs when a ghast targeting a player flies into a lava column.
Thank you for your report!
We're tracking this issue in MCPE-147882 and MCPE-41803, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
– I am a bot. This action was performed automatically! The ticket was resolved by one of our moderators, and I left this message to give more information to you.
Duplicate of MCPE-41803
Thank you for your report!
We're tracking this issue in MCPE-41803, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support (Technical Issues) – 📧 Microsoft Support (Account Issues)
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
– I am a bot. This action was performed automatically! The ticket was resolved by one of our moderators, and I left this message to give more information to you.
Affects 1.9.0
Because there is still exists there is stuck ghasts
Affects 1.10.0.5 Beta version
Affects 1.10 full release
Affects 1.11.0.8 beta version
Version 1.11.4
that gives unfair advantage because it can give you the "Return To Sender" achivement
That also affects 1.16.50/1.16.40/1.16.61 and 1.16.100.xx beta
This also causes extreme lag in the 1.16.201 Hotfix on both Realms and Custom Servers when Ghasts become stuck in lava falls and can bring things to almost a screeching halt. Tridents with Loyalty will usually automatically return to player's inventories without being thrown if attempted to be used to kill the Ghast stuck in lava, unless it is held back for at least 10-30 seconds before throwing it when this happens with the Ghast. This should not happen and the Trident should be thrown immediately upon releasing it.
This also affects other mobs too when this occurs on Realms and Custom Servers when a Ghast becomes stuck in lava, and can bring them to almost a screeching halt, making their movement extremely slow or at times making them stationary.
Timothy Chaplick: I have removed your comment because it describes one or more different bugs.
Please submit a separate report for each bug. It seems quite unlikely that a problem with ghast pathfinding has anything to do with lagging the game, but if you're finding that it does, that's a different bug that needs a different report. (If you create one, be sure to describe how you were able to prove it to yourself that the ghast is to blame, not something else). Furthermore, the effects of lag on tridents and "other mobs" (which ones?) are not relevant to this report at all, as only a ghast can fly into a lava column and become impaled by it.
Still affects 1.17.0.
In retesting this, I thought of something that might explain virtually everything that's happening, something the devs may be neglecting because it's neither visually obvious nor obviously connected with the symptoms of this issue as I originally described them.
I had long ago noticed that not all ghasts get trapped in a lava column. I dismissed it as not remarkable, since it's common for a bug to involve random and/or unseen factors that trigger it. But this time I happened to be watching two ghasts, one right in front of the other, as they flew into a lava column. The first one went through, though I noticed it slowed just a little while it was in contact with the column. The second one came to a complete halt and never made it out.
The thought that occurred to me was that if contact with the lava is slowing the ghasts' forward motion by a fixed amount, a slightly faster one might be slowed but eventually get through, while a slightly slower one might lose its forward motion altogether. From there, secondary effects would follow: They would no longer be able to turn (because of how turning is implemented as a modification of pathfinding), and although I'm not able to explain the slow ascent, that might also be a result. So then rather than looking for something that could trigger random ghasts to behave differently, the devs should be looking for whatever causes any ghast to slow down as they pass through a column of lava.
Mobs that encounter lava always attempt to swim upwards regardless of their pathing goals, unless they are undead. I suspect that not only were ghasts not added to this exception, but they are also given swimming physics when colliding with lava, causing them to move slowly.
The scenario where ghasts get completely stuck is probably started by a ghast's pathing goal being set in or next to lava (at least enough space that the ghast's hitbox is clipping into lava), then the ghast flies to the correct x and z position, and proceeds to swim up and away from their y destination due to being in lava. Pushing ghasts in this state will result in them wanting to fly back into the column, remaining stuck. In my tests, removing the lava caused ghasts to travel down and eventually start pathing again, suggesting that they were also trapped in their pathfinding until their goal was reached (
MCPE-49607). In fact, their ability to fly down might be getting slightly overpowered by their urge to swim up, causing them to move up slowly rather than quickly.I un-restricted Timothy Chapwick's comment below because it just describes impacts of this bug, and it is corroborated by
MCPE-171681. The video linked on that report very clearly shows the extreme lag that can accompany a ghast getting stuck in a lava column. A plausible explanation is that this bug triggers MCPE-147882 when the ghast has a target.Still happening in 1.21.2, although it may be that ghasts have a smaller chance of getting stuck in lava columns now.
