Hello Everybody,

were having a problem with the duplication of a Project/Timeline in FCPX 10.3.3. on macOS Sierra 10.12.4.

This happens only while working in a Workspace on the Nexis. Using the same project on a Local Storage won´t cause this problem.

I´ve added a Screenshot of the Error-Message in FCPX after trying to duplicate.

Thanks for ideas

You're going to need to call support to have this diagnosed. Collect a Continuous Client Log while trying the duplicate the Project. I've never see this issue before.