Are you still unable to login on 327?
If you're able to go into Settings and export your settings, from the three dots in the top right, the only thing I can think to suggest would be clearing the app storage after you've already backed up your settings. If you're still unable to log in after clearing the storage data then I've got nothing.
In 325 through 327, I've been logging in and out numerous times to test stuff and it's been fine for me. Haven't been logged out by the app recently but there was an issue like a month or two back so I know it can happen.