“You Have Been Successfully Signed Out” every time I try to log into Tandem Source from mobile

Anybody else having this error? Every time I try to log into Tandem source from mobile, it’s acts like it’s going to work then it just takes me back to the home page and says “you have been successfully signed out”. I don’t usually have this problem from a computer, but it happens occasionally. From mobile it’s almost every time.

I thought it was maybe my browser, Safari. So I downloaded Chrome on my phone. It let me log in last night but today I’m having the same problem. I’ve been telling tandem this over the phone since September but all they do is “put a note in my profile”.

I’m definitely logging in to the new Tandem source and not the old Tandem website. Has nothing to do with my password or anything like that. Anybody else run into this and do you have a solution?