Versions

Minecraft: 1.15.2/Multiplayer (online-mode=false)
Forge: 31.2.20
Minecolonies: minecolonies-0.13.69-ALPHA-universal
Structurize: structurize-0.13.19-ALPHA
no other mods

Expected

Both door blocks stay closed when trying to open a door without having colony's permission (foreign colony).

Actual

The clicked door block (half) stays closed but the second block opens.

nothing relevant in logs

That's actually an issue with another mod that causes double doors to open together. So it's #4510

@Raycoms this is not related to another mod - as described (even emphasized), I have only Structurize and minecolonies - it is not the double door bug. Single doors are also affected.

Ahh, not only double doors. Then this is because we cancel the event on the serverside about the permission.

yeah, I double checked, since we block events serverside this happens. I'd call that a vanilla or even forge but. Since when the event is cancelled serverside half of the door doesn't notice this.