Thanks for the suggestion. I’ve done a repair as suggested (with Skp closed) - and a reboot - and it’s still giving me the load errors, so there’s still something else going on.
Since vray Next for skp is also affected (crashes if I try and run it against my model) I also reinstalled vray, then copied+pasted the model into a new sketchup file and tried again to render. No joy.
I uninstalled Curic LA using the skp Extension Manager, restarted sketchup and still the same issue with vray - instant crash.
I pulled up an old model file and hit render, and had no problems, so there’s something screwy in the model file itself. I suspected too many dynamic components - perhaps too much nesting going on(?), and converted them all to ‘regular’ components… and the same problem persists.
Next step was to uninstall the only other new app: FlexTools. I’d made some custom windows/french doors and thought they may be responsible for the aforementioned possible nesting depth problems. Not likely, but with Sketchup you never can tell what gentle breeze will make it start biting you.
Loaded the dastardly model and tried again. On the plus side, it didn’t instantly crash when I tried to hit the vray render button. The bad news is, it dimmed the screen and waited for me to give up after a few minutes of waiting, and kill it off manually.
The good news is, I have more RAM available, as I get rid of each useful tool.