SharePoint Highlighted Content Filters Not Working as Expected

I too am experiencing issues with this web part. I had everything working fine for several months. However, if I edit it now, it breaks and doesn't work at all. I had previously filtered on a column that contained managed metadata. I tried to update what I was filtering on and it just started to show everything in the library starting with most recently added.

I have tried:

1) Filtering on something else to see if it works. I.e. non- managed metadata. For instance, I tried to do a filter on Title contains the words, etc. and no filtering is happening - it shows everything.

2) Deleting the web part entirely and re-adding it. This still doesn't fix the issue.

This is hugely frustrating as I now have to remove the web part from many pages so as not to confuse end users.