If Alt+Tab out of the game and return, the mouse doesn't appear on the screen or work. If this happens in the character's menu, you're softlocked.
This happened to me in the tutorial zone. Open menu with ESC, enter characters. Alt+Tab and the mouse vanishes, and the player is softlocked. The mouse also vanishes when the player exits the Characters menu, or when they Alt+Tab with the menu open.
Weiss' glyphs can't be seen from underneath.
The broken bridge area of the tutorial stage. Is it meant to kill you if you fall? Doesn't do anything.
Green crystals at tutorial and beacon academy don't say the key to press down.
I have the 0.14 version of the game.