Dear Maintainer, This issue was fixed by openshot-qt/3.1.1+dfsg1-1 uploaded in sid on October, 11th. This is the relevant upstream commit [1] that was merged in openshot-qt 3.1.0 and newer versions.
buildd confirms that your package builds fine [2] Kind Regards [1] https://github.com/OpenShot/openshot-qt/commit/8ce7e216eac7081 [2] https://buildd.debian.org/status/package.php?p=openshot-qt
