Comment # 74 on bug 1068792 from Dave Plater

The developer of mlt and shotcut has suggested two OpenCV plugins that might be
the cause. I've removed them from the frei0r-plugins-nothreadsafe package and
for now they are in the frei0r-plugins package. If you can install the
frei0r-plugins-nothreadsafe package and test please. There are another three
suspect plugins built against gavl that are still in the
frei0r-plugins-nothreadsafe package.
 in:
https://download.opensuse.org/repositories/home:/plater:/shotcut/Tumbleweed