I have latest Noet, running on latest ios 9.x on the previous mini.
Trying to use the scroll bar (bottom; horizontal) only shows the TOC as its position (incorrectly), and doesn't allow going anywhere. The bar does correctly show the current position, however.
This bug has been around a while.
It became a problem when (yet) another resource blanked out its remaining text (Watchers in Jewish/Christian Traditions). The usual solution is to scroll beyond the compile error. But the scroller is out of commission. So, plan 'c' was to jump to the next chapter, and page backward.