The very first time you saved an image in this version, you were presented with the option of either saving to the Cloud or saving to your computer. Additionally in the lower left hand corner was a box to be checked if you wanted this option to be permanent. If you did not make a selection, the program by default will attempt to save your images to the Cloud. However, since in many of these builds most (if not all) functions of the Cloud have been disabled or removed. So, your images are now in limbo and you get the endless circling image on your computer screen.

You can try to reset your preferences to see if that works and thusly allowing you to make the correct "save" decision.

Edit > Preferences > Reset Preferences On Quit

If that doesn't work then you are most likely going to have to uninstall Photoshop with a program like Revo Uninstaller Pro (advanced settings), then use Reg Organizer's Registry Editor (searching for "Photoshop" and removing all listings), and finally use the AdobeCreativeCloudCleanerTool to cleanup and remove any possible "tails." Then reinstall the program and hope this solves your problem.