Tbh i'm not a dedicated programmed either.
So idk what to advice.
But somehow while i was playing, i perhaps was clicking autside or doing something the game didn't like, and i was stuck to moving only horizontally etc...
Ofc that's not ideal since that's not the game design.
But it's not like it happened always, it was just like 2-3 times.
If you want to polish this later perhaps consider talking to the programmer or whatnot.