@ShakerBreaker, refer to OTA update of 0.8.0-rc.4 app on 0.8.0-rc.2 device noting my kit was a Photon.
Reading this ticket I can see that your problem was (probably) one and the same as mine, but I was able so solve using OTA, which is what you want if the kit is in the field.
PS - my troubles were circa 12:30 UTC+10 on 2018-06-07