Comment 4 for bug 1949215

This is an interesting report, and, unfortunately, there may not be a fix done in 20.04 for this as that repository is frozen in time. Additionally, pitivi is sync'd unchanged from Debian, hence no "ubuntu" in the version number, which means this is an upstream bug.

Moreover, this package is an outdated version. The latest release available in later versions of pitivi are in later releases of Ubuntu, i.e. 21.10 which released a couple weeks ago as of this writing. There have been many upstream bug fixes since the version of pitivi in 20.04 was released that are available in 21.10. It *might* solve your problem, but I cannot guarantee that.

Also, Wayland is experimental in Ubuntu 20.04 and is unsupported. The earliest version of Ubuntu with supported Wayland by default is 21.04, so consider upgrading.

Either way, please test with Ubuntu 21.10 (impish) and report back. Unfortunately, I have to mark this as "Won't Fix" for 20.04.