I haven’t updated mine yet. However I noticed on Sunday that my OG HomePod stereo pair were doing this. I was on my way out for the day so didn’t have time to investigate. Then yesterday evening the mini stereo pair in the dining room were doing the same thing so I checked the stereo pair of minis I have in the kitchen and it was the same. I didn’t check the ones upstairs but assumed they wold also do it. I tried to reboot the ones in the dining room and kitchen but it made no difference. In the end i restarted my router and that did the trick. Not sure why as everything else was still working, iPads, iPhone, macs, echo speakers. It was just the homepods that were playing up.