XnView Software

Xnviewmp 0.94 no longer opens files with spaces in the file name if the file is invoked from PcManFM. It still works if invoked from Thunar. It works in PCManFM if user is root. It worked fine in the previous version. It also works fine in Xnviewmp browser. Reverting back to XNviewMP .93 and it works fine again.

Steps to reproduce"

1) Double-click on a pic in the file manager PCManFM that has spaces in the filename; Xnviewmp gives a "File Not Found" message and opens to a blank screen.

Xubuntu Bionic (up to date)
PCManFM (repository package)

Note: I fixed the problem by deleting all associations of Xnviewmp as the default image viewer, rebooting, and resetting Xnviewmp as the default image viewer.
This required manual deletion of the files found in "/home/user/.local/share/applications"

Not sure what changed between 0.931 and 0.94 that would have caused this, but the above worked.