New (black) ARM2, purchased from new in November 2020. Started to require multiple attempts, and pulling mains in and out to get to boot up. Have updated OS to 1.60A, no faults showing on start-up test. Issue seems to have been around a while, having seen similar or same issue referred to multiple threads going back a couple of years.
Have raised a ticket and put the retailer on notice, so thought I would put a shout out here while I await a response.