I have tried everything. I get the "Oops! Looks like this account is already connected. Please sign in with your previously connected Microsoft account, (My username)" or the "Signing in with your Microsoft Account..." window lags and never signs in.
What can I do? I have contacted Minecraft and they tell me to contact Microsoft because I am using a Microsoft account to sign into Minecraft. I contacted Microsoft and they tell me to contact Minecraft because there is nothing wrong with their servers. Not sure where to go next. I know my account email and password is correct -- I can sign into the account online. But I cannot sign in through Minecraft.