Error filtering work items in Devops Track and Plan

Question

Sometimes, the filter by tags "#" returns a parsing error... it seems to happen on some tags most of the time and on a few tags almost never... please advise.

Answer 1

If you initiate a tag search with #, the dropdown menu lists available tags. It also lists past searches initiated with #. If you initiate the search and then select a prior search, you end up with ##, which will produce a parsing error. In your example, I expect that the dropdown menu includes #api as a past search. When you initiate a new search and select that item, you get ##api.