Hello Mayors!
We are currently working on a fix for the saving bug, so if you're experiencing an issue with your save action getting stuck, please try launching the save with this new branch!
We have opened up a Steam-only Beta branch where you can test out the hotfix.
If you have been experiencing the bug where you're unable to save, follow the instructions on how to change your game version in the image below and choose the 'saving_fix' beta option. This will start updating the game and will enable it.
If you're still having issues with saving your game after testing this branch, please go to our forum and fill out a form so that we can get more data points on how to fix this.
Link to our Bug Report board
When you want to disable the branch, you simply swap back to Default Public Version in the same menu where you enabled it.