You are not supposed to test stuff in scene edit mode. It is not intended to work. That is why there is a scene edit mode. It disables all scripts. Test your maps in a real gamemode.
Personally I never work in editing mode, it is completely useless except to move a cannon ... But I reconfirm the statements of my colleague mapper, the object mm_wall1 is bugged when it is destroyed--> ?invalid object?. And let it be in siege, battle, conquest ect ...
And I dare to ask for a hotfix to fix once and for all the bugs .... or is it too much to ask?
And, Why can the guns have a certain size when they have a pose, and once the card is restarted, the cannon has reduced by about 20%? I specify that the boxes "random rotation" and "random size" are not checked