On Coreelec-NO, I have the problem on an AM6b+ connected to a LG E6, in TV-Led mode, PPI always states that DV video is being converted to DV, which is not true (TV reports DV, and I can see it is correct).
Note that SDR + BT.2020nc is an oxymoron, as that combination should not be able to exist. This is new behaviour compared to Kodi 21 builds. This behaviour also bleeds into ppi GUI and plugins (Such as TinyPPI). It is probably confused by the 8bit RGB tunnel. Hope it can be fixed in future builds.