Voicemail info missing since ios 15
Since updating to ios 15 and now recently ios 15.1. On iphone 8 the details of voicemails left has disappeared. Myself and others only shows a box with call voicemail. No listing of calls as normal. I have tried resetting, all the hints on the web turn wifi off, restart phone etc. and changing.voicemail password but just get not available. Also, not just my carrier, so think it is apple bug?
iPhone 8