only a few games are not affected like this, like mario and luigi bowsers inside story, barnyard blast, and games that i added myself into the r4's sd card because they werent already there
Sounds like your SD card is dying. Please try a new SD card.
Also, which R4 flashcard are you using?
still not, and idk if i already said this before but all my ds consoles are broken so i cant test itHave you tried a different SD card?