Fixed [4.0b1 BUG] "Compression level out of range" message on refresh

[Wanderer]

I have a rom that returns a strange message: There was an error on it, so i unpacked it and re-created a new zip (i used 7zip 9.20). This one however, when i put it in the roms folder and refresh it, it returns this error: "Compression level out of range. Parameter name: level0 to 5". Even if i compress one of the roms inside it to a new file and put it in the rom folder, it produces the same error. I also compressed them with my file manager (Total Commander) which uses a different set of DLLs for zipping but the result was the same.

UPDATE: This started since i went to file/options and changed the zip compression level to "max". After that (and the rezipping), the issue occurred. Returning the slider to its default value eliminated the problem.