Exult Studio: World objects randomly become non-solid
I have noticed it happening that when working on map editing with Exult Studio, after some time what are supposed to be solid objects become something I can walk through. This is of course most noticeable with walls, and it is somewhat random which objects it affects. This is purely a temporary issue. If I just save the map, shut down and restart Exult, then everything is back how it should be. Just moving an object by one square also immediately restores it to solid.
This seems like it is possibly related to working with multiple maps. Once this does start happening, I have noticed a fairly reliable way to invoke it is to switch between maps and save the different maps in Exult Studio.
This is using 1.9 build from Dec 03 2022.
Update from so far: I haven't had this happen again in a while. I suspect this may be something that only gets triggered when you have placed a lot of objects (possibly in the hundreds) into the game world during a single session of running Exult.