We’re very sorry to hear this. We need some more information to replicate the problem.
What version are you using?
What sample rates do you have set for the channels?
Are you on any particular tab (in the workflow) when the crash occurs?
What other windows are open? (e.g. second view, aux responses)
If you have any work already saved to system and (channel) project files, please email them all to firstname.lastname@example.org.