Sorry about the versions. Mine is 5.580.0.6676. I didn’t realize there would be incompatibility.
The key is to make sure your sketches intersect correctly, otherwise errors ensue. You’ll get there, good luck!
Just give you another example how to do it right way.
Hi Mike,
Got it! I thought it had snapped to the circle. Apparently not …very fussy software, but I like it.
Thank you for your help.
Peter
Hi Mike,
That’s on Shapr3d. It should convert the files transparently or at least advise the differences and then convert.
Thanks,
Peter
Hi Xdrakosha,
Thanks for your help, that works as well. Now I can try my complex profiles.
Here’s hoping. 
Peter