I was just about to post the very same issue, but it seems to be sporadic.
- First, make sure you are in a Greek/Hebrew version. The Resource Window only updates when you mouse over those versions.
- Second, in Tools | Options, click on Flags, then Browse Window. Make sure that "Automatically update last active Resource Window" is checked. It should be by default, and was with me.
- Third, what fixed it for me was to switch to a Hebrew version, then back to Greek. So I went from BNT to WTT back to BNT, and it seemed to work ok.
"Contend earnestly for the faith that was once for all delivered to the saints." Jude 3 (ESV)