BUG

[bunnyi116]

I found that after uploading, unlocking, and then deleting, when using Syncmatica to load, the lock button cannot be unlocked.

Unlock

Remove

Unload

Load

Cannot be unlocked

[sakura-ryoko]

I would suggest enabling the packet logging to see if it's getting a MODIFY DENIED packet

[sakura-ryoko]

Also, I have a bit of a hard time following the images due to the translation :)

[bunnyi116]

This is because when a user unlocks for adjustments, the server should set a status that prevents other users from taking further actions. Only after the player completes and locks the changes can other users unlock for actions.

Solution: When a player unlocks and deletes/unloads the schematic, or exits the game, they should send data to update the status.

[nnnik]

A client logging off should have the same effect as them sending an abort modification packet.
A client unloading a local placement should also abort or alternatively the server should send the client the state of the modification when loading the placement again.
Regardless there should be a timeout on the placement modification of maybe like 5 minutes (And probably all other exchanges should have timeouts too).
This currently is an oversight in the business logic.