"I've used Avidemux GTK for years, and have loved how easy it was to use. However, if you have upgraded to Mint 19.3, don't even bother to install this. It has a QT interface, but bleats about missing codecs, and on my setup will not open any video. If I can get hold of a copy of v2.5.4 GTK+ I would be more than happy. Any suggestions as to how I could do this?"
"V1.12. Mint XFCE 19.3 (fresh install) Flowblade can not import MP4 files!! It just crashes ;-\ " Unknown request in queue while dequeuing""
"Used to use this for several years. But the developers have forgotten one important rule: "if it aint broke don't fix it". V2.5.1 flatpak is useless (can't find libmp3/mp3?!! etc etc): uninstalling & reverting to an older version"