Checked with 5.0.0 (666) on iPad mini iOS 8.2 and iPad iOS 9.1 - no jumpiness is observed. I will re-check on other devices later (I made a note about it).

iPhone 6s with 5.0.0 (666) is still showing jumpiness.

The Random article should be at the top - refresh and the screen will be scrolled down to 'Nearby' section.
The screenshot shows the placement of the article on screen before you may refresh it and see the jumpiness.

Confirmed this is happening on 674 with iPhone 5C.

https://www.youtube.com/watch?v=q3syAnXO16Q here's a slo-mo video of the jumpiness

@BGerstle-WMF we still saw this during the walk-trough with build 724. It seems to only happen when the random card is at the top of the screen.

Should we move back to "Ready for Dev" for another look?

It seems to only happen when the random card is at the top of the screen.

I can take a quick look, but I don't know how much more we'll be able to do. The problem is that we haven't been able to successfully update a single row/section of the feed w/o causing crashes when multiple sections are updating at arbitrary times. As a result, we have to reload the entire table, which discards row estimates, which can lead to the jumpiness you're seeing. There's a chance we can "lock" the table and it could fix this, but otherwise I'm out of ideas.

Still occurring. Leaving in play for now but not a release blocker.

Should be resolved by user interaction changes proposed in T127899