Donāt think so - it was happening before I upgraded - that just happens to be the latest machine state. In fact, if I go into pop/rock, the sub-genres are all in there but, in Rock (where they used to be) there are no sub-genres showing. Weird.
No - āRockā appears as a root-level genre, alongside āPop/Rockā, which seems odd. Iāve always gone in to Rock in the past to show sub-genres. It now has no sub-genres - they all appear to have moved into Pop/Rock.
Default metadata, like genres for example, is sourced from 3rd-party metadata providers. Metadata providers may change/adapt their genre hierarchy from time to time (not daily I hope, but might happen).
āRockā is currently not a provided default genre. Maybe it was once, IDK?
What are your import settings? Do you instruct Roon to use your own genres?
Anyway, as āRockā isnāt (anymore?) part of the supplied genre hierarchy, it doesnāt (canāt) contain predefined sub-genres. That it (still?) exists implies that you manually created that genre and/or added content to it.
It might be helpful if you could share a screen grab of Settings ā Library ā Import settings (as below) as it does seem as though youāre not using the standard Roon genres.
Hereās what mine looks like. And, like @BlackJack, I donāt have a Rock genre (either as a top level genre or sub-genre).
Aha - I think we have a clue. On my installation, both were switched on. My guess therefore is that the top-level Rock genre is extracted from my local files (mostly CDs ripped lossless, originally in iTunes) rather than using Roonās database. The odd thing is that things have changed in the last 48 hours or so, when Iāve been running Roon continuously for many years. V useful, thanks - Iāve never actually played with those settings. Iāve now switched off the āUse genres extracted from file tagsā option and will see if that makes a difference
I suspect your guess is correct.
I have files ripped from iTunes as well and also have a top level Rock genre although Iāve also done a fair bit of genre metadata tag editing and may have created a Rock genre this way as well.
In my case switching settings to use Roon genres only didnāt remove the non-Roon genres.
They still appear on the genre tab but with no associated albums.
Iām curious to see what your results are please keep us updated.
Thanks.
+1 - Iām now looking for a list of Roonās genre hierarchy and, now that Iāve got a clue about where the odd structures are coming from, can do some editing
Just a headās up: I edited my genre metadata tags in specific ways and it turned out that if one uses genre tags not recognized by Roon it can break Discover.
And I didnāt have a backup prior to when I started this so Iām currently in a bit of a mess.
You might want to make frequent backups as youāre editing.
When youāve got things straightened out you can also edit the genre hierarchies in Roon. For example, āAlternative/Indie Rockā is normally a sub-genre of āPop/Rockā, but Iāve edited to to be a top-level genre:
Iāve also done the same with āContemporary Pop/Rockā and have made āChamber Musicā a top-level genre rather than a sub-genre of classical. All three changes were done to make it a bit easier to find the specific genres Iām interested in.