I can install flatpaks just fine with Discover, but not on the command line with the flatpak command. The error thrown is: " F: Failed to parse /var/lib/flatpak/appstream/flathub/x86_64/active/appstream.xml.gz file: cannot process file of type application/x-zerosize"
appstream.xml.gz exists, is readable, has non-zero size, and contains XML.
Any ideas?