This is not really a glitch but when you play a level were other characters are locked and go back to the menu or infinite mode they stay locked (example playing a level were runner is locked she will stay locked until you play a level where she isnt)
You should make the map scrolling easier (when selecting a level) most times while scrolling I accidentally click on another level and it can be quite frustrating.
I think you may want to add a feature where it tells you what level you beat with what character for example it shows like you beated level 1 with the runner or something.
 "Run 3"){kind=icon}
There are more updates to come.