Yep same here. On Android 13, all permissions enabled. I click the three dot menu and select download but get no confirmation and no image downloaded.

I've cleared cache, deleted the data, uninstalled and reinstalled with no change.

Same problem.

I have the same problem on Android 10, nothing happens when clicking the download button

I'm on android and works fine. Focus on the picture and hit the 3 dots in the upper right corner to download.