2nd Gen Chime weirdness

I have just bought the doorbell 3 with new chime, and the chime is really problematic.The chime connects to the network fine when set up as a new device. At random intervals it starts flashing red and green, but is still connected to the network with a clean bill of health according to the app.It has now stayed Blue for a nearly a day, but in the last few minutes began flashing red and green and then went solid red, no flashing, it is still connected to the network with a clean bill of health according to the app too, testing the sound from the app makes it chime.In both the flashing red and green and the solid red states, the chime doesn't ring when the doorbell is pressed (but it remains connected to the network and app)In both the flashing red and green and solid red, the chime doesn't work when the doorbell is pressed and the only way I have found to fix this is to remove the device from the app, and do a complete reset - which only seems to last a few hours.This was an upgrade from the doorbell 1 and chime 1, but is feeling more like a downgrade, please help!