Apple Music - Can No Longer Edit Multiple Items At Once

Ever since updating to the first Sonoma update (now on Sonoma 14.1.2) I have had trouble editing albums in Music. Everyone is probably aware that iTunes / Music has always had a gremlin that would split albums. Normally I would highlight the split titles, go to Get Info and find the anomaly. If there was nothing obvious I could always put an x after the title in both (or more) highlighted albums and then they would usually join together.

Now, with Sonoma, if I get an album that perhaps splits into several albums, I highlight them all and enter the relevant info. For some reason I now cannot input info for multiple items at once. I have to enter the missing / incorrect info individually for every single track that split. If I decide it's too much effort I can highlight them all and it WILL respond if I try to delight multiple items. In short, I can delete multiple items by highlighting them all but cannot update the info the multiple items in one go. Anyone know why? Thank you.