(restricted)
Here's a strange issue I've been having when I try to insert custom blocks via block tool (super deluxe).
The blocks work as intended in non-custom levels. But if I try to put one into a custom level they crash the game instantly when Mario interacts with them. I fiddled with various header properties but nothing helps. I started with a clean ROM and copied over the levels in question - same problem. Help?
update: I have no idea what's happening. If I place s block in an otherwise unedited level it's fine. If I put it in an already customized level it causes crashes. I copied the objects/background of one of the bugged levels into a new level; crashes. I deleted everything in the new level, turned off all ExGFX and custom palette, and, unless I missed one, copied the headers from one of the working non-customied levels; crashes.
update 2: Okay apparently the problem is my custom BG. I have no clue why but if I'm using a custom BG it causes the problem. Any ideas? I should note that it causes the issue even with ExGFX turned off. I have to copy a (default) BG from another level to fix the issue (which is, of course, not a real fix).
Checksum OK, ROM is clean and unpatched...