Why are my photos taken on Huawei P20 pro not syncing to Google photos

[Android Central Question]

Re the above this was working O K up to a couple of weeks ago

 

[B. Diddy]

Welcome to Android Central! Have you already looked at your Backup & Sync menu in the Google Photo app's settings? Are you expecting it to backup when you're not connected to wi-fi? If so, make sure the toggle is turned on under Cellular Data Back Up.