I have some jpg and .nef (Nikon RAW) files that I have accidentally named "TX=" followed by date and time info. I typed in TX= in the search field and it showed, apparently, everything with name starting with "TX-". I tried enclosing the search string in quotes but that didn't change my results. Just in case it mistook "=" for part of a regular expression, I tried escaping it with = but still incorrect results.
What am I doing wrong? I want to find all of my TX= files so I can rename them all.