I just saw this happen in this thread on this page but like an idiot clicked refresh instead of investigating

At least I know now that there is indeed another issue and will try to figure this out.
LOL, no worries, as long as you are aware of the issue, you'll reproduce and fix it sooner or later. This bug is not
that elusive.
I was able to reproduce it by navigating quickly to another page before the BPIP values are loaded, and then going back. The browser showed cached page without BPIP values. The problem is that I don't recall clicking "back" when it happened earlier.
I am also 99% sure that when I've reproduced it I didn't press <back>