I've updated all the models from known previous working versions and redrawn them but to no avail so tried reverting back to V8.30.3 and all of these errors are gone (I probably should have tried this first).

As I only know of one possible error causing this found by EvilSOB I've removed all the sizeof macros but still having 101 issues.

Am I able to send the project over to see if there's soemthing I've done wrong my end and so far managed to get away with it or if the error does lie in this latest version?

Cheers