question mark status in eix

Some products show
[I] dev-libs/libdbus-qt
while many others show
[?] dev-qt/qt-dbus

I expect the [I] status for installed products, what does the ? mean?
I tried rebuilding the ones with ? which didn't change it and revdep-rebuild
didn't find anything.

This seemed to start after the kde/plasma upgrade.
Since then sddm won't start, KDE won't start, and I'm worried the ? is a clue.