Another PDF kit bug?

I was just starting a new project and saw that with a particular imported PDF when it is is in single-page continuous mode and automatically-resize=ON there is a white block either top or bottom of the pdf view:

Resizing the binder or window causes the white block to flick top and bottom. This doesn’t happen in single-page mode or with automatically-resize=OFF for that PDF.

OK, I should have just read the bug forum first: