How to force Google Photos to sync photos to the cloud? I just took a picture with my phone and a few seconds later I refreshed Google Photos on my computer and the picture was there.  But then I took a second picture and five minutes of refreshing later the picture is still not there!  This has basically ruined what I was trying to do, as I was relying on being able to quickly download pictures between shots.

I was on WiFi the whole time.  There was less than one minute between the first and second picture.  I don't see any indications that anything is uploading or that anything failed.  I have looked in both the Google Photos app and the web site looking for anything to force a sync and haven't found anything except for "Back up all" which did nothing.

How can I force my phone to sync to the cloud immediately?  In the Photos app the new image already appears, but on my PC only the first picture I took showed up.
In Google Photos app select Assistant and then you can choose (or view the current backup status/progress) to force backup photos. Be sure to set the different image maps to cloud: the folder will then contain a blue cloud icon with an arrow in it.