Pistons forget their extended state on world reload
The extended state of pistons is not saved in the file, instead their state is recovered on the chunk load by ticking them with some delay.

In the screenshot shown above, the sticky piston is permanently powered and thus should never retract. But if you reload the world the piston momentarily retracts and triggers the dispenser containing a water bucket.
Linked Issues
Created Issue:
Pistons forget their extended state on world reload
The extended state of pistons are not saved in the file, instead their state is recovered on the chunk loading by ticking them with some delay.
In the screenshot shown above, the sticky piston is permanently powered and thus should never retract. But if you reload the world the piston momentarily retracts and triggers the dispenser containing a water bucket.
The extended state of pistons
arenot saved in the file, instead their state is recovered on the chunk loading by ticking them with some delay.
In the screenshot shown above, the sticky piston is permanently powered and thus should never retract. But if you reload the world the piston momentarily retracts and triggers the dispenser containing a water bucket.The extended state of pistons is not saved in the file, instead their state is recovered on the chunk loading by ticking them with some delay.
In the screenshot shown above, the sticky piston is permanently powered and thus should never retract. But if you reload the world the piston momentarily retracts and triggers the dispenser containing a water bucket.
The extended state of pistons is not saved in the file, instead their state is recovered on the chunk load
ingby ticking them with some delay.
In the screenshot shown above, the sticky piston is permanently powered and thus should never retract. But if you reload the world the piston momentarily retracts and triggers the dispenser containing a water bucket.
relates to
duplicates
relates to
From MCPE-19086:
The extended state of pistons is not saved in the file, instead their state is recovered on the chunk load by ticking them with some delay.

In the screenshot shown above, the sticky piston is permanently powered and thus should never retract. But if you reload the world the piston momentarily retracts and triggers the dispenser containing a water bucket.
Original description:
When loading the world extended pistons that aren't in the same chunks has the player will retract for a second. It seems to effect 3 to 4 chunks away from the player.
Reopening... I have found out that this is in fact a separate issue from MCPE-13608.
Attached screenshot & test world from MCPE-19086.