I'm sharing reports with external guest user giving them a pro license in our Azure portal and giving them access. Most users can acces the report in their mobile browser (not using the app because they don't have a work mail) by loging into their account. The problem is that for some reason a few users are not prompted to log in to their account when they open the link in their browser (Safari). When they load the link they only see the Power BI logo loading, there's no window appearing to log in. Are there any known problems for some (mobile) browsers why this isn't working? Might it be related to certain browsers setting or cookies?
Thanks in advance!