You may be able to exclude its folders under Preferences / Launching Opus / Explorer Replacement to stop Opus windows opening for them, depending on how it works.
Crash dumps should exist in the temp folder, and can be emailed to leo@gpsoft.com.au if you'd like us to take a look. It the crash is in Opus's own code then we can probably fix it, but it may turn out to be in the Genie Timeline shell extension and need reporting to them. We might be able to provide some useful context about when/how the call is being made into their code to help, so even if it's not in our code it's still worth us taking a look.