How to reproduce:
The Problem:
Suggestion to fix:
I'll confirm this. The "All" button. It does nothing.
If I switch to a text that has indexed fields but not the one I had originally checked, the All button still doesn't work, but I can get it back to All by checking and unchecking "Search Fields".
But, like you said, if it doesn't have any search fields, there's no way to switch it back to All.
I'll report this. Thanks.