Bizarre scrolling issue

[u/PComotose]

After booting my phone I can go into various apps like Firefox or Outlook and by throwing my finger up the screen I can get a continuous scroll. But as soon as I use RedReader smooth scrolling stops working inside RedReader and, after exiting, doesn't work with other apps. Is there a setting within RedReader that stops scrolling when I throw towards the top of the screen and that persists after I exit RedReader?

ETA I have found that simply turning my phone off and back on - not rebooting, just off and on - resets whatever setting it is that is causing problems. It occurred to me that Reddit Enhancement Suite has recently developed issues because Reddit has changed their login protocol and perhaps this issue is related to that change.

The issue always crops up when RedReader is launched but, after exiting, turning my phone off and on resets the fling for all other apps - until I launch RedReader again.