EDIT: OK this is fixed now. I ended up trashing everything and reinstalling and it all seems fine now.
I have recently installed a new SSD and dragged my old home folder over and pointed to it, while using migration assistant to bring over my apps and other data. However I’m getting a file write error when launching zBrush, if I set my account to Admin then it launches fine, however on my old set up I used to have my working account set to standard user, it did not need to be an admin account.
and advice appreciated