Quoted from Coindork:I know that if you are a Mac user and download more than one file at a time or do not clear your download history the computer will auto assign suffix numbers to them.
Example:
CHROMA.ROM
CHROMA1.ROM
CHROMA2.ROM
CHROMA3.ROM
In that case you have to remove the suffix number from the file name or the DMD will not recognize it.
I’ve had this issue also but with a PC.