Gamebreaking bugs
-After Earth Tower V1, SDM basement event can be started more than once. It freezes if attempted with all party members.
-After Earth Tower V1, you can gained slowed overworld movement after Remilia pays you. Loading a save from the bedroom seems to cause it. Need to completely close & reopen the game then load a different save once it has happened at least once. The save after the Aya cutscene works fine if you reload the game first.
Minor bugs
-After Earth Tower V1, it's possible to retain the Covering Fire skill on all party members.
-Fairy in SDM can be damaged by Catastrophic Failure and G-1 Snipe and can even be dropped to 0 HP. Aya can also be hit by Catastrophic Failure. I didn't test other unwinnable fights.
-Mercenary Leader (inescapable encounter that drops Isher's Blade) can be encountered multiple times. Walking onto the map tile will trigger the encounter every time.
-Your party members are still on the pressure plates in the last area if you decide to go back and check those maps instead of moving forwards.
-One of the Youkai can't equip Malefic Crest. I'll just call her O since spoilers.