KDE Neon, being based on Ubuntu 16.04, has shared-mime-info 1.5. This version is old and triggers Bug 384991. I tried upgrading to 1.8 and that fixed it. Consider upgrading the package version in Neon so that users can open their LibreOffice documents again without resorting to workarounds.
*** Bug 390500 has been marked as a duplicate of this bug. ***
Small comment: I have shared-mime-info=1.9.2 and still get this bug (debian sid).
David, do you have Krusader installed?
(In reply to Christoph Feck from comment #3) > David, do you have Krusader installed? I still get the same problem when 1) Using Krusader, 2) Not having Krusader installed in the system.
Will be fixed with the 18.04 re-base.
I upgraded to neon 18.04 and the issue persists with shared-mime-info 1.9
This was done ages ago.