Listary 6 Beta: action "open containing folder" does nothing in explorer

Using Windows 10 v1903 and Listary

Steps to reproduce:
Inside an explorer window, type an existing filename.
Hit Ctrl-Enter, or use Right_key, Enter to open the parent folder

Result: nothing happens.

The action works correctly when opening Listary with double Ctrl.

Which log file should I attach?

Occasionally Listary 6 doesn’t work in an explorer window but works in the others. If this is the case, a simple solution is to press Ctrl + N to duplicate an explorer window and close the original one.