Access Shared Power BI report (External user) - Hanging

Final Update

After numerous escalations, my issue was finally raised to Microsoft technical support and resolved.

Here is the summary of the closure of this ticket. Note the support engineer was from China so the English translation of the trouble ticket may be confusing to some.

Basically the B2B tunnel for my report for external users was not working. The workaround was to create a new B2B tunnel to our Tenant. Once a user used this new B2B tunnel, the original B2B tunnel became functional again. The Microsoft support engineer could not comment on why this fixed the issue.....only that it does fix the issue.

Ticket Number: 120073026000052 (This is the trouble ticket that was raised by Microsoft to manage my issue)

Problem Description: Some user found themselves forever looping into loading page after open Power BI B2B invite Link. ========================================

Resolution: Access to B2B Share Link home page could mitigated issue:  This action only need to be done once for each influenced user. We recommended to add this workaround to option message in sharing window for your convenience. Note(Aug-13): It is confirmed that there are three influenced user’s issue is mitigated via above method. ========================================