I have a project dB, which i have just updated (ie the OP with a new version). Updating Project dB's has been flakey for a while, but I can work around it by simply re-opening the project in another window, and manually checking it has updated. Normally, I get a page such as this after pressing either of the two save options.
NB: I have tried saving it twice with the second one being a change in formatting to ensure it triggered a save.
However, when I look at the OP, it shows it being last updated by some other random user (ie not me), with some way historical date (ie not now)
The project URL is: https://forum.xda-developers.com/and...ation-t3806260