I wish I could see the part you've put up but, I'm having trouble un-zipping these types of files from some of the other helpful guys that have tried to help me find solutions to my SprutCAM problems.
This sound like something I've been struggling with for the past several days. I mean, setting up a planing operation; both the roughing and the finish planing.
I finally got where I can do the roughing operation so it works the way I want it to on the top surface of my part but, if I try to create a new finish-planing operation immediately after my roughing operation I'll start to get anything from collision warnings to real erratic behavior in the software itself.
Even if I do a copy and paste of the roughing operation and just go in and change the parameters settings I still can't get it to work.
I watched an online tutorial put out by Dukes4Monny that gives some slightly more detailed info on all the different input fields in the parameters setup page. It may have given me an idea about what I may be doing wrong.
I'll find out tonight when I go through the whole process again for the umpteenth time.