Android does not recognize long .pdf file names

Files that have been created on my workstation with Adobe Acrobat 2020 using long names are not recognized on the Android Samsung SM-X818 tablet. The tablet does have Adobe Acrobat reader installed but will not open the .pdf that I created on my workstation. The Android cuts off the names of the files including the type of file. As a result it doesn't know what application to use.
Notice that the file thumbnail place holders in the included photo are all gray with a blank page.
Samsung:
SM-X818U Tablet
Android Version 14
w/Adobe Acrobat Version 24.9.1.35566
Workstation Windows 11
w/Adobe Acrobat Std 2020 Classic Version 2020.005.30680
