When you remove many tracks with events such as audio and midi together cubase crashes…
Could you attach a *.crash file, please? You can find it in the macOS Console utility, under the User Reports folder in it.
The crash user report should be attached below.
2 of the crashes are directly in NI Reaktor 6. Make sure you have the latest version installed. If yes, get in touch with Native Instruments, please.
Thanks again Martin