Just this morning the two home minis I got from those 2-pack deals a while back refused to set reminders and would frequently give the "something went wrong" message. I've already tried unlinking/linking my account,factory resetting and unplugging it to force a reboot (as well as the reboot option in google home)
The units briefly changed the tone of the google assistant voice (I didn't even know this was an option) with no input from me as well.
Managing reminders is still fine but it gives the "I can't set reminders yet" reply when I try to set one (which is,from research,what you'd get through most of last year).
Google's live support had no idea either and just told me to "monitor it" and get back to them.
Anything I should try/anyone know what a possible cause might be?
There could be 2 things at play that I can think of.
If both the mini's are within earshot of each other. They both receive the command and I dont think google have programmed it right at the moment to understand which one to execute the command, then craps itself and just says something went wrong. In this case try to go close to one of them try again.
The other issue maybe that it doesnt recognise your voice. Try doing the voice match thing again in a quiet room. I've noticed in the morning when I wake up it doesnt recognise my voice for "wahts my day look like" and gives me everything except for my drive to work.