I noticed this problem a long time ago, but i just forgot to write about it until now. So i remember playing at the arcade when i noticed that now i have no plaza experience, yet i still have all the milestone items i got after reaching about 500k-600k (it’s been a while, so i forgot tbh), and also when i checked my collection book, only my plaza experience was affected, meanwhile i still have all my experience in other minigames. i also checked that the exp wipe happens when you use macros, but i swear that i never used them whenever i played the game.
Did you have any macros or odd software running in the background while you played? It sometimes picks them up.
I don’t have any macro software installed on my pc, so no. as for other software, i usually had steam (of course), discord, chrome, wallpaper engine and borderless gaming running while playing.