After 605 update on 3rd roast program froze after charge, could not navigate through any menus. Roaster was heating and turning very slow had to stop roast.
Working now I believe USB cable was at fault.
I have a similar issue- I’ve had to be careful about not disturbing the connector while I’m using the roaster+RT3. Seems to not seat as much as the connector might otherwise allow. After a couple mid-roast disasters I re-routed the cable to avoid shooting myself in the foot.
ps- check your messages