Are there ANY known glitches or bugs in this game?

Not to my knowledge.

sometimes some of the cutscenes won't start immediately and give you a long and annoying black screen. I am not 100% sure why that happens and how to avoid it. Another one i can think of is you can avoid/delay the level up prompt by holding the dodge key even if you are not in combat. Not sure why you would do that but yeah.

oh there is also this but i personally never encountered it. You would just reset if this were to happen in a speedrun anyway