Without you providing very much information to go on, try clicking either
in the toolbar and clicking the 'Clear All Slots' button and see if that helps. This will clear all custom exanimation you may have added to the level (this button
) or added globally (this button
Other than that, I've not seen this tile cycling issue before. Did you make sure to extract (
) your gfx first, then reinsert (
) before trying to add ExGFX?? You've got to do that [I believe] before trying to add custom graphics so Lunar Magic can convert the original graphics to 4bpp first.
Always make backups of your ROM before doing major changes. If you haven't, Lunar Magic does have an auto-backup feature under "File>Restore>Restore ROM to previous state" that you can use to 'rollback' your ROM to times before problems arise; however, you will lose any changes you've made since the last "auto-save" Lunar Magic performed.
Hope that helps.