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.