Descriptive Problem Summary:
I'm reporting this for a player, so, I can't give a whole lot of information, but I can provide what I think might be happening.
I think every time you change a window/child's position or size or visibility or something, it creates an entire new window/child and just hides the old one or something (other changes might do it as well, I just can't see the results because they're on top of eachother). I don't even know. All I know is, in this screenshot the same window/child is visible multiple times.
When you close a project or it crashes, sometimes hidden interfaces show up before it closes. So you see a ton of hidden windows in the above screenshot, even though new windows aren't created from the game.
The crash that brought this interface issue to my attention, I'm not sure where it is from, but I think maybe after awhile there's just too much information and the game crashes.
I haven't had the crash, but many players have. So sorry for lack of information, but something is going on with interfaces. Which probably has something to do with memory and lag issues I've reported/had trouble with in the past. And it sort of makes sense since most performance issues I've had came after switching to heavy interface-based projects.
Numbered Steps to Reproduce Problem:
Sadly I do not know.
When does the problem NOT occur?
Did the problem NOT occur in any earlier versions? If so, what was the last version that worked? (Visit http://www.byond.com/download/build to download old versions for testing.)
Don't use interfaces.