That a new one - but probably just as unfortunate.
I spent an hour trying the C7 capacitor replacement (no good) and then C4 (no good).
I then spent two days resetting Insteon account and linking to new hub.
factory resetting everything and linking to new hub.
4 switches failed after factory reset (they just buzz buzz now) - so I had to replace those (more hours).
Remember and reprogram timers.
Relink Alexa…
Still haven’t fixed stringify.
Read in sh forum that they now repair hubs. That would have been way more preferable.
I don’t think that can help you though.