Same problem here. Cubase 10.5 Pro randomly crashes both when working with
3rd-party plugins (Superior Drummer 3, loading a new set),
Steinberg plugins (Padshop 2, loading a user sample) and
- when applying Cubase (i.e. Steinberg) built-in functions (Normalize an audio clip).
It also randomly crashed a large number of times when doing other normal operations that I don’t recall what they were. All crashes were identical hard crashes where the application would completely disappear instantly. Basically, it was so utterly unusable that I couldn’t get any work done at all and had to start working in Cubase 10.0.40 again (which is rock solid on the same system).
In other threads where the OP mentions the use of a specific plugin or vendor (Superior Drummer, MacDSP, etc … ) the standard answer seems to be to point to the 3rd-party vendor as if the problem lies there. This is not helpful as it is quite obvious from the diverse crash scenarios described above that the entire Cubase application itself is unstable and can seemingly crash during just about any operation.
Deflecting each individual scenario to the respective 3rd-party vendor mentioned just blurs the picture and delays the time it takes until Steinberg owns this problem and fixes it.
And, yes, I do have the latest version of Superior Drummer 3 and the latest version of Mojave.