Device: Moto G XT1032 bought from Amazon.de
Current ROM: GPE 4.4.4
Previous ROMs: almost every stock firmware for XT1032 you can think of
Workflow: 1. read - 2. think - 3. try - 4. goto 1

Useful info: How to restore stock firmware
When flashing OTA updates of stock firmwares:
1. root is not an obstacle 2. XPosed is not an obstacle 3. use stock recovery or Philz recovery only