I don’t know why Launcher can’t connect to Epic services again, which is a problem by itself, but more importantly - whenever it has problems with servers it is impossible to login offline, because “Please wait” pop up and you can’t access any buttons. I managed to press “Go offline” button with tab and arrows, but it did nothing due to focus being on “Please wait” window. Currently the only way for me to successfully login is to remove internet connection from PC - only then I allowed to go into offline mode =/
TLDR: Let me go into offline mode if there are server side problems instead of infinite PLEASE WAIT window
Happened to me aswell last night, I just opened the editor via the editor exe and just ignored the launcher altogether.