Hello,
The tax_query works properly on X-Theme v7.2.3 but fails on Pro Theme v4.2.3 and above. We are currently using Pro Theme v4.3.2 - it’s still failing. We’ve tested for all theme and plugin conflicts. I should note that I created a previous ticket but the solution offered did not resolve the issue (Tax_query failing on Pro Theme v4.2.3). In addition, we originally noticed the issue in late March 2021, and in the X-Theme changelog you reference an update to the tax_query relation on March 1st 2021: https://theme.co/content/pro4-2-x8-2-cornerstone5-2/#changelog.
I’ve created a video that you can see in the next hidden comment.
Thanks.