I ran into a problem with particular g code program, when it gets to the first G2 it begins to move at higher feedrate in -X direction until stops at the soft limit. (line 33).
In demo mode with soft limits disabled the move looks like a really big arc.
Adjusting the feedrate override makes it skip that line, and it does the same when changing the constant velocity settings back to default values.
The toolpath visualization looks fine.
It only happens in v1.2115, I switched to 2113 and it works just fine.
I reproduced it in another pc with uccnc 1.2115 in demo mode using the same profile. I have a UC300ETH.