I just realized that some time in the recent past the rooms/speakers starting switching their position in the Rooms view if you select or deselect them. It seems to me that it wants to keep the selected speakers at the top and the deselected ones at the bottom, but that is terrible behaviour. If I want to transfer from one room to another now the list gets jumbled several times, and I alwas have to rescan the list and see where the item is I am looking for.
If you absolutely must have the selected one at the top, do it only after opening the view, so that the order is kept while the screen is open, and if I close it and reopen it it gets build anew, but like this is is simply confusing. For a minute I thought I was in the Spotify app, that’s how bad it was ;)