Issues with Login/Registration Button Functionality

Hello,

I’m experiencing an issue with the Login/Register button (Ultimate Member – Social Login v. 2.5.8, Ultimate Member 2.8.9). When I click on it, I’m initially presented with the option to select a Google account for login. However, if I log out and attempt to log in again, I’m automatically signed in with the last Google account used, without being prompted to re-enter credentials. If I log out a second time and then request access for a third time, I’m again presented with the Google account options, but I’m unable to log in with any registered account. In some cases, repeatedly clicking the login button even opens a popup displaying the login page within itself.

I have also noticed similar issues during the registration process using the same button.