Problem just started. Level locks up when attempting to test from ZED as soon as the level loads. I did notice that the dev info at the top isn't displayed before it freezes. I have to Alt-Tab out and use the keyboard to end the task (mouse is locked up as well).

Building a Gob file from the jkl works fine. Any thoughts on what's causing this?

Do you have any cogs that have sections of them that only run in -devmode?

No. Nothing has even changed from several months ago when I was working on it before. Just opened it up and immediately tried testing to remind myself of exactly where I was.

delete the bat file in the folder and try again

Deleted the .bat file. Same issue persists. I thought that maybe, just maybe, it might be that I still had my MotS disc in the drive, but no. It's only this level too. Very strange. Again, works fine if I gob it and test.

I know I've seen this issue before in this forum, but couldn't find it in a search.

I always have to gob and test, alot of people do. My levels normally got to a size and then testing failed!