This is a list of effects not working (tested in 23.08 beta appimage on a Pop!_OS 22.04 system) in no particular order: 1) Video Waveform Monitor - Missing UI for tint0, tint1, fitmode, input (see effect description from https://ffmpeg.org/ffmpeg-filters.html#waveform) - Parameters w/o visible effect: graticule, background opacity 2) Vectorscope (advanced) - Parameters w/o visible effect: background opacity 3) Histogram - Missing UI for colors_mode (see effect description at https://ffmpeg.org/ffmpeg-filters.html#histogram) - Parameters w/o visible effect: background opacity, foreground opacity 4) Datascope - Missing UI for components (see effect description at https://ffmpeg.org/ffmpeg-filters.html#datascope) - Parameters w/o visible effect: mode, format, opacity 5) CIE Scope - Missing UI for system, cie, gamuts, showwhite, corrgamma, fill (see effect description at https://ffmpeg.org/ffmpeg-filters.html#ciescope) 6) Zoom Pan - Effect does not do anything (except zoom which oddly enough is based at the top left corner) w/o the (missing) duration parameter (see effect description at https://www.mltframework.org/plugins/FilterAvfilter-zoompan/ 7) NDVI - Missing UI for parameter color map (0), visible channel (6), NIR channel (7), index calculation (8), legend (9) (see effect description at https://mltframework.github.io/mlt_web/plugins/FilterFrei0r-ndvi/) 8) Some values need to be entered twice to be properly displayed even though the value was accepted and acted upon (tried it with X and Y fields in Crop by Padding effect) 9) Edge Crop - Values entered in Top or Bottom are applied top AND bottom equally. The last value entered in Top or Bottom is used. - Values entered in Left or Right are applied left AND right equally. The last value entered in Left or Right is used. - As soon as a value is entered either in Top or Bottom, values in Left or Right are ignored - Settings for Automatic center-crop and Use project resolution seem to be ignored completely - Entering of values in Left most of the time requires two attempts - Using the sliders creates havoc with the cropping 10) Fill Borders - Missing fill options for reflect, wrap, fade, margins (see ffmpeg filter description at https://ffmpeg.org/ffmpeg-filters.html#fillborders) 11) Shear - Parameters are of type integer when they should be of type float 12) Scroll - Mouse wheel in the value field does not change the value but the effect shows a change in the Project Monitor - Sliders behave strangely (no change in the slider position or value but Project Monitor shows effect is changing) when using the mouse wheel