That's odd. Anyway;
How/When it happen?
It happens at random - no pattern or clear tendencies. Simply launching the IDE, load the project I'm working, and it'd load to result as either image 1 or image 2 at random. In the case of it ending up as image 1; to resolve it, all I needed to do is close the IDE, relaunch the IDE, and then reload the project. Sometimes it requires more than one reload to solve it. When it ended up as image 1, I can still work on my project just fine, no lag nothing - just the annoyance of not being able to see the ID names in all the instance layers of my project - and by the way the jumbled up text is not limited to 1 room, it's to all the rooms within the project.
I did some test (launch IDE - load project - close IDE), and I noticed that whenever the issue occurred, these shows up on the ui.log;
[19:09:11:729(0a9f)] Caught exception for gadget of type 'window' and style 'window'- Error: An anchor or dimension has been set to percentage with no parent gadget, try using pixel instead
[19:09:12:137(0a9f)] Caught exception for gadget of type 'window' and style 'layer_view_window'- Error: An anchor or dimension has been set to percentage with no parent gadget, try using pixel instead
[19:09:12:146(0a9f)] Caught exception for gadget of type 'window' and style 'layer_properties_window'- Error: An anchor or dimension has been set to percentage with no parent gadget, try using pixel instead
I'm not sure if I will want to send over the project I'm working on, since it's close to completion and almost ready for release. But if just the ui.log, is fine. But I can assure that whenever I do a test run on the project as Windows - Local, there's so far no Syntax Errors message, no Compile Errors message, nor anything to suggest any issue in the Output. The game I'm working on revolves around the use of ds_grid. And I do not use "layer_view_window", or "layer_properties_window" in my project scripts.
Anyway, I'll make a formal bug report with the ui.log to support, but probably not with the project file.
Thanks.