If I try to import the settings for my MS 365 account using a QR code, I get this message on the phone:
http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a:Type does not contain allowed value
If I use a file, I get a message saying the version of the XML is incorrect.
If you are using V10 Android build that will be the problem. There is a Android V11 Beta due out shortly as per @Michal_Burger post below.