R15b3 crashes - no system crash log, etc

Ok, help us help you. I have a crasher I can repro involving VST filters with MIDI controls. The app vanishes, no normal crash log. R15b3pr and 10.13.4
Is the crash log still being generated ? if yes how about a hint where it is so we could send it in.
is diags useful after a crash ? as in generate it on next launch ?
any other suggestions ? I could do mov capture showing it happen and dropbox it but prefer not to make these links public. thnx
S
Is the crash log still being generated ? if yes how about a hint where it is so we could send it in.
is diags useful after a crash ? as in generate it on next launch ?
any other suggestions ? I could do mov capture showing it happen and dropbox it but prefer not to make these links public. thnx
S