Started up clean 3.3, ran a mvn build through it generating a bunch of artifacts, then enabled rhc on the repo and the report contained all the counts as expected (in both the repo column graph and the tooltip graphs).
Once i remotely block a repo and rerun the analysis, bingo bango, 0 download counts shown
Upgrade Nexus 3.2.1 with manually blocked proxy repositories to Nexus 3.3.0. After signin to Nexus 3.3, the Analysis check shows 0 total and 0 bad, even the previous RHC checks in 3.2.1 worked fine and there is still lots of content in those proxy repositories.
Clean install of nexus 3.3. Ran a build through it, and did an analysis.
I see zero counts in the Analysis check summary, even though there are definitely artifacts in the proxy cache. Hovering over the report, you see it found some vulnerable components but other data is missing in the summary.