Each time we attempt to change the colour of an Audio Track in the Project window or Mixer Cubase Crashes.
Hi,
Could you please attach a screenshot, where exactly do you click?
Could you please attach the *.dmp/ips file?
Mac: macOS Console utility > Crash Reports (or ~user/Library/Logs/Diagnostic Reports).
Win: %userprofile%/Documents/Steinberg/Crash Dumps