Unable to sign in to Microsoft sharepoint Account - Office365 Cloud

same for me, when I try to add sharepoint site on my tenant as a storage account in Adobe Acrobat or Acrobat reader it keeps looping on back to the setup dialog. I don't get to the logon screen to logon to sharepoint. 

However it is possible to add Onedrive for work, on that same O365 tenant, as a storage account.

Adding a sharepoint site on another tenant seems to work fine, at lease I'm getting to the logon dialog of Sharepoint.

I already investigated with Adobe but they are pointing to Microsoft, and with Microsoft but they are pointing towards Adobe. (I must admit that Microsoft took much more time to investigate the Adobe has investe.) I'm really disapointed in the level of support of Adobe)