ISSUE - Cubase 11LE crashes with TH3

I have a clean install on osx 10.13.6 IMAC. Good fast machine with no issues. Since loading TH3 my cubase crashes. No other plugins installed at all. Fresh install of 11LE.
Had the same issue on my previous Mac running Cu 10.5LE (not a good machine hence the change to current IMAC) Please help

I’m on a PC with 11 Pro, but no crashes with either TH-3 or TH-U. So Mac only issue?
Sorry I couldn’t be more help.