Unable to launch multiple instances of the same type
Attempting to run two instances of Minecraft at once presents the following error:
Launching the game failed!
Unable to extract native files.
Error details: Minizip error while extracting: -111
Filename on disk: lwjgl-3.2.2-natives-windows.jar
Path: C:\Users\<User>\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\3.2.2\lwjgl-3.2.2-natives-windows.jar
Exists: File
Linked Issues
is duplicated by3
Created Issue:
Unable to launch multiple instances of the same type
after launching one instance of minecraft, I am unable to launch a second of the same version
Environment
Windows 10
java version 8 update 333
after launching oneinstance ofminecraft, I am unable to launch a second of the same versionAttempting to run two instances of Minecraft at once presents the following error:
Launching the game failed!
Unable to extract native files.
Error details: Minizip error while extracting: -111
Filename on disk: lwjgl-3.2.2-natives-windows.jar
Path: C:\Users\<User>\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\3.2.2\lwjgl-3.2.2-natives-windows.jar
Exists: File
Attempting to run two instances of Minecraft at once presents the following error:
Launching the game failed!
Unable to extract native files.
Error details: Minizip error while extracting: -111
Filename on disk: lwjgl-3.2.2-natives-windows.jar
Path: C:\Users\<User>\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\3.2.2\lwjgl-3.2.2-natives-windows.jar
Exists: File
is duplicated by
relates to
Windows 10
java version 8 update 333
is duplicated by
is duplicated by
is duplicated by
MCL-23423
Thank you for your report!
We're tracking this issue in MCL-23411, 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.
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Thank you for your report!
We're resolving and linking this ticket forward as a duplicate of MCL-23411, as that ticket contains more detailed information and/or has already been triaged by Mojang.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
Thank you for your report!
We're tracking this issue in MCL-23411, 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


my last ticket was closed because I mentioned mods so I've recreated it, multiple of my friends have had the same issue today after I asked them to test it because I was able to have 4 instances of minecraft on the same version yesterday
Hi, I cannot reproduce this behavior with either 1.19.4 or 1.20 Pre-release 2 on Windows 10/11 App Launcher.
Please attach the full launcher log found in minecraft/launcher_log.txt.
Please also uninstall the Launcher, delete .minecraft folder (copy its content elsewhere before deletion) and then reinstall, restart your computer. Then please try to boot the Launcher.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
I've just gone and tried it myself and no, it doesn't happen on 1,19.4 but if you cannot launch multiple instances of 1,8,9. I'm not sure how many versions this bug affects. Also which launcher_log.txt do you want me to link? I have a few of them
Hi again, please reproduce the issue one more time, close the launcher and attach the latest launcher_log file.
This behavior happens on pretty much all versions, starting from 1.18 and below
I have tried versions from 1.18 all the way down to 1.7.10. Happens every time.
The only version this doesnt happen on is 1.19 and above
I have attached the launcher_log file
Me and many others are experiencing same issue. Unable to launch multiple instances on versions below 1.19
Quick workaround is to rename instance before each launch.
I was able to reproduce this also on 2.4.69 (Win 11 App). I was logged into 2 different accounts and launched and got the same error.
I confirm this issue. I have excatly the same problem while I try to launch two instances of Minecraft 1.18.2.
I confirm having this problem on all versions except 1.19.4. I usually play on 1.12.2 so it's really annoying!
The only quick-fix I found to be working was to change the GB in the JVM arguments to one higher, but it's quite annoying to do so.
I confirm this issue, started to happen after recent launcher update.
After more testing, it seems like this issue does not occur when instances are launched from installations with different settings.
Workaround for now: Duplicate the installation the user wants to launch multiple of, then launch one from each installation.
Also, it seems like changing the installation settings after launching one instance, then launching another works too (as said on previous comment).
Differences installation settings that prevents this error:
It can be noted that reverting/setting to the setting the first instance was launched with, then trying to launch causes this error to appear again.
Can confirm everything that's been said before. First instance launches without errors, second one gives the 'Unable to extract' error. Making any chance to the installation between launches avoids the error.
this issue has been around for about a month even after multiple launcher updates. Has the developer team noticed this issue yet?
Hi, once a ticket has been confirmed and an ADO number has been assigned, the developers have been informed and are working on a fix.