an error message pops up (sie grafic)
Also tried copy and paste (right mouse click, context menu), same behavior
Pop-Up may appear more than once.
This also happens when I try to open any office file per double click on the file in FC file panel.
I do not receive error message when doing the same in Windows Explorer

I do not experience this behavior when running FC with default settings
FreeCommander XE 2019 Build 801 64-bit donor
Windows 10 Pro 64-bit Version 1903 Build 18362.329
Office Home and Business 2016
I do not experince this behavior with other file types, i.e. txt, zip, mp3, jpg etc.