VCS polling not showing changes

I have a VCS root setup as polling, but when I select a manual build and go to the Changes tab it doesn't show the latest changes. If I go to a different build configuration that uses the same VCS root, it shows more recent commits. I have several build configurations that use the same VCS root and all of them seem to show a different commit as the most "recent". I've done the "Test connection" button on the VCS edit screen to ensure the connection works.

I also noticed that even though it doesn't show the latest changes, if I select the "<lastest changes at moment build starts>" it DOES pull the most recent commit and builds correctly based on the "build.vcs.number" parameter. If I look at the commit ID for that parameter, it shows, in my case, that its for version 1.4.1064.0. On the build history it shows "no changes" even though the previous build has an older commit.

I did "Check for pending changes" on the build configuration Actions drop-down, but that didn't make any difference. I also shut down the server, cleared the system\caches folder and that didn't make any difference either.

I don't see any errors related to this VCS root in the teamcity-vcs.log file.

Why aren't the latest commits on that VCS root showing consistently across all build configurations on the UI? This is a problem when we're trying to select specific commits to do a build.