Using the gamepad to scroll a scrollbox causes the scrolling to move slower.
Tested in 4.18.3(CL - 3832480), 4.19.2 (CL - 4033788), 4.20.1 (CL - 4233996), 4.21 (CL - 4245542)
Expected: The scrollbox would scroll the same speed when using a gamepad as it does when using a keyboard.
Result: The scrollbox moves much slower than scrolling with a keyboard.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-62382 in the post.