Oct 8, 2018 at 10:35 AM
Sorry for not deleting my post but I already fixed it, boosters lab came packed with cs deluxe and I opened my cave story with boosters lab while still in program files.pen your mod and hit File>Save-all.
This will set the exe to use .bmp files. It's a common issue. I should probably open a github ticket for prompting a save when it does that conversion.
Dumb dumber fixed it now, have high hopes for my mod!