Hey guys, I'm running the flatpak version of Kdenlive 20.08.1 on Linux Mint 20 and it can't create proxy clips. The log contains this message:

/usr/bin/ffmpeg: symbol lookup error: /usr/bin/ffmpeg: undefined symbol: avio_protocol_get_class, version LIBAVFORMAT_58

I have ffmpeg installed both as a flatpak and as a regular package on my computer. Do any of you know what's going on? This was fine when I last used Kdenlive about 2-3ish months ago.

SOLVED! Turns out deleting kdenliverc and re-configuring the app did the trick.