Account keeps switching to a different one

If i leave the page open for a while and come back it keeps switching to a different account (seems like the first account in the list of accounts) than what I selected, this account is even on the hidden list. It doesn't even happen when I do a manual page refresh. So it can be quite annoying when I input orders and then realize later that the account has changed.

I am using Safari browser on the latest OS and MacBook Pro.