So yes, i use cheats. But i've been able to do it without getting bad eggs before, and now i can't use cheats without a bad egg appearing in my pc. Thankfully the first time it happened i had an older saved version so i was able to load back to the time before i had a bad egg. The other times i saved just before using the cheat so i could undo it if it went wrong (and it did, every time).

Example of a cheat that gave me a bad egg:
82005274005e

I found this cheat here: https://www.supercheats.com/gameboyadvance/pokemon-emerald/14056/evolution-stone-cheats/
it was supposed to let me buy moon stones from the pokemart. When i enabled it it seemed to work alright, but as soon as i actually bought the stone, one of my pokã©mon became a badegg. This also happened with other item cheats i've tried (for tms).

Did anyone else have similar problems and was able to resolve it? How did you do it?