I just encountered an extremely aggravating bug[or glitch, or SOMETHING]that essentially ruined my 80+ hour playthrough. I had been levelling up 2 new members for my team[Claydol(holding Crest) and Volcarona]. I got both to level 85, got them their movesets[well, mostly Claydol], and went back to Zone Zero. I went up, saw the small cutscene with the statue and Audino, and at that moment I realized I didn't have an electric type on my team for the panel thing, so I went into the airship and used the PC to get an electric type. Upon doing so, my entire team was reverted to the state before I had done any levelling, basically resetting them to the last time I used that PC. This deleted my Claydol Crest and more importantly, my Life Orb on my Feraligatr, as well as wasted several heart scales I had used to relearn moves on Claydol, change nature on Volcarona. I do not know how to access previous saves[or if I even can], and have no clue if I have backups or not. This has essentially rendered that file unplayable for me, as there is no possible way of acquiring those items again.