This was it! I had my 10-25% (not degrees 😅) overhang speed set not to slow down at all. I now have it set to 30mm/s and I have a perfect result. Thank you 👍😁

Sorry, I didn’t follow that. Top layer of what? Not the actual top, top layer right?

You may actually be right even though I thought I had checked this. Orca’s overhang speeds are based on overhang percentage and not angle, I previously just looked at the number and assumed it was degrees 🤦‍♂️I will match the speeds for all overhang percentage ranges and see if that solves it 🤞

Thanks. I’ll experiment with temperatures first but I’ve got some different filament on the way too as it happens, so hopefully I’ll manage to escape the problem one way or another 😁

Thanks, I’ll give it a go.

It starts just underneath actually, but it still could be related 🤔 Maybe I need a test without numbers.

Thanks guys. I will try both and see what works. My layer adhesion is good / parts are strong though.