I'm listing this one as a Feature Request, as there's no actual bug - just misleading data.

If a host records changes on it's last run, the Report Summary will show a "changed" icon next to the link to the report. However, the Hosts summary will show a "tick". This is because the "tick" actually means something completely different in the Host context (i.e no errors vs. no changes).

I think it's useful for the Hosts page to use the same icons as the Reports page, so that the information is presented consistently - that is, the Host page should show the same icon as the Report page. This would allow at-a-glance checking of the status of saved searches - consider deploying a module that only affects a certain fact, and then searching on that fact to ensure all hosts applied the changes....

Patch to follow :)