First, I found the part of the page that I wanted. Then, I closed the Find panel. The visual editor scrolled me to the top of the page (lost focus?). I clicked into the page (to make sure that the cursor was somewhere sensible) and opened the Find panel. Now, it cycles through the numbers – I wouldn't be surprised if the cursor really were at #1 out of 5, and then #2 out of 5, etc. – but I don't see what I want. I only see the top of the article.
I can't reproduce it not scrolling while the find panel is open, but the jump to the top when the find panel closes is definitely there.
It also only happens on Mediawiki. In standalone VE the scroll position is maintained. (Which is a pain, because there's been enough breaking changes lately that bisecting the submodule is awkward.)