I wish I had the answers you're looking for.
I just wanted to welcome you to the frustrating world of SprutCAM ownership. I wish that I were experiencing only the problems you're inquiring about.
I don't want to presume to speak for all SprutCAM users but, some of us have experienced or, are experiencing frustration with this software on an order of magnitude that I'm sure has robbed some of the time off of our lifespan.
The irony is that most of the answers we're seeking are simple ones. It's just that the software seems to be set up in such a complicated way that finding those simple fixes is next to impossible without a SprutCAM guru to help you out; and those gurus are few and far between.
I long for the day when I can stop whining about the misery this software causes and start using it to its full potential.
There are folks here that have experienced few if any problems. I envy them. There are others I'm sure, that have just grown weary of it all and just given up on this software. You don't hear to much from these two groups of folks for obvious reasons.
If you don't get the answers you're looking for here, there are a couple of other SprutCAM specific forums that may be able to help.
Hang in there. Don't allow this to ruin whatever ambitions brought you into CNC. Even though these setbacks and frustrations are enough to drive a person to drug abuse, all is not lost.