I'll attach 2 screenshots. The first shows "portage-2.1.6.5" but clicking on it fives only portage-2.1.6.*4*. Reproducible: Always
Created attachment 178226 [details] screen shot
Created attachment 178230 [details] screen shot 2
It's called caching. We do lots of it to keep load managable. Force a reload if having data that's a few mins out of date isn't fine for you.