Menu items are only displayed as icons, and where the text for the menu items should be is only a black space. A picture speaks a thousand words:


As you can see, in the second picture, sometimes a bit of text can be seen. The address bar is also effected (I didn't think posting a picture was necessary, it is similar to the first picture above), which means I can't select a previous directory in the address bar. Only a window filled with black space is displayed.
As it is an error which only occurs on occasion, I can't pinpoint where it is coming from. I can say, after entering a zip file to view the contents, and thereafter extracting the contents via right-click (7-Zip -> extract contents here), the bug occurs. But this doesn't happen all the time. I can add that when it occurs FC has been running for a couple of hours.
7-Zip Version 18.05 (x64) (I am not using the FC plugin)
FreeCommander XE 2018 Build 782 64-bit donor
Windows 10 Pro 64-bit Version 1803 Build 17134.228
Thanks in advance for your help