Trying to have a chat recently, and Microsoft Teams would not open on MAC OS.  Sometimes it would open without issue.  But today, no play. The email comes through with no issue.  Opens in Safari with no issue.  But the link to open in Microsoft Teams, goes nowhere. Below are the progressive steps that I took to resolve this issue (note that this could take multiple solutions - let's see):   Solution 1: delete cache How to delete the cache of Microsoft Teams on...