Getting Error using readVideo

Get the following under Linux Mint 19.3, Matlab 2020a - this is similar to another post, but I got no reply by posting there:

Error using VideoReader/initReader (line 734)

Could not read file due to an unexpected error. Reason: Unable to initialize the video properties

Error in audiovideo.internal.IVideoReader (line 136)

initReader(obj, fileName, currentTime);

Error in VideoReader (line 104)

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I have run the Install GStreamer command per another similar post and it made no difference. I can successfully play the AVI file using VLC; if I query VLC as to the codec it comes back with "RV24". I have also queried the file and seen reference to a x-msvideo codec,

I can't find a codec called RV24; the closest I have found is RGB24 - but it is unclear to me that this is a codec. I have not found anyplace to download the ms-video codec if that is what is required.

Is there a way to access the codec VLC is using in Matlab? Or if RGB24 or x-ms-video codecs are really what I'm looking for, where do I find these codecs and where do I put them so Matlab can find it?