That's super weird and shouldn't be happening. We've seen a few similar reports and passing them along now. Mind sharing an example channel URL too and any screenshots of what you see on your end? Thanks!
Same thimg happened to me i was subscribed to this youtubee for years and watched all their videos and it chose that one to unsubscribe me from that channel not to mention the TV version of youtube audio is terrible my niece has the blast my tv to hear her videos
i like to Cheer people up thats how i was brought up to make people happy.