Unable to enter text in the (ADVANCED) SEARCH box
I am using Adobe Acrobat Reader DC Version 2019.010.20098. Starting yesterday, when I attempt to perform an advanced search in a local document library, the search box appears, but I can't enter text. The cursor blinks, but when I attempt to enter text, nothing is displayed. 
When I try to perform a regular SEARCH (CNTL F), the search box is displayed, but the same problem occurs...nothing appears in the search box when I type.
I went into EDIT/PREFERENCES/SEARCH and selected PURGE CACHE CONTENTS, but the problem persists.
Thanks!
Suzanne
