If I click on an airport, select Direct To, View Plates, More Plates, Minimums, and then select the Takeoff Minimums document, and then I use the Sketch function to highlight some text on one of the pages, I noticed that the highlighting exists on every page in the same area of the screen even though I only intended to highlight a little bit of text on a single page of that document. So this appears to be a bug.
On a separate note, it would be hugely beneficial if it would only display the minimums page that contains the selected airport instead of having to scroll through several pages of minimums for all the airports in the area, but I believe it was reported from your team that the data as it's supplied to you doesn't allow for this, which is unfortunate.