Homepod mini says ‘I don’t see anything connected in my home’ even though everything seems to be connected correctly

Hi, my HomePod mini, after a month of problem free use, has started to announce ‘I don’t see anything connected in your home, I can help once you have set something up in the home app’ even though everything is on the home app and responds if i’m just using my phone.

I haven’t found any info regarding this issue but have tried restarting wi-fi and HomePod mini to no avail. Anyone else have this problem? Anyone able to fix it?