Sometime in November or so, (seemingly all of) MLT's avfilter effects on multimedia/kdenlive stopped working. I can add them to audio but they have no effect. Note that the 'not available' plugins do not show up in the plugin view at all.
MLT effects. avfilter effects have 'avfilter.'...
I tried to install kdenlive via a mish mash of ports and packages. and have done several things to resolve this issue with no avail.
When running kdenlive from term I get this error:
Cannot mix incompatible Qt library (version 0x50c02) with this library (version 0x50c01)