This thread is resolved. Here is a description of the problem and solution.
Problem:
The issue here is that the user's filters are not working on mobiles.
Solution:
In this user's case it turned out to be an issue with the user's classes and css that were causing it to not work. What I would recommend is that you remove all customization and try again to see if it starts working again.
This support ticket is created 6 years, 8 months ago. There's a good chance that you are reading advice that it now obsolete.
This is the technical support forum for Toolset - a suite of plugins for developing WordPress sites without writing PHP.
Everyone can read this forum, but only Toolset clients can post in it. Toolset support works 6 days per week, 19 hours per day.
Thanks! Btw, thanks for your help on performance. I think that caching plugin worked much, much better than the one we had. Still testing though - I'll respond to that ticket when done.