Is there a fix for this bug? Faerie Ring, Ghost Ring, Sun Cloak, Moon Cloak, all of these items don't have their specials anymore. The Sun Cloak for examples enhances all Light Magic Spells in the original version of the game. In the Gog version it does nothing at all, as don't do the mentioned rings. This is very annoying since they are powerful, important items.

that is very strange, do you have greyface patch installed? if not you should do that

No, i don't like all the changes he made. I wanted to play vanilla as possible. That is the patched Gog version. But I own the disc version, and I know that in that version the boni were there (Doesn't work with Win11 though). So it must be something else that broke the game. I hope Gog could look into this. Or maybe someone knows how to fix this, changing some data of the game maybe. At this point I'm almost through the game again, but maybe for the next run.

Which game?

I'm pretty sure MM7. I don't think those four items are in 6 or 8.

That said, I think they were still working when I last played through.