The Sequencer timeline can't be scrubbed with the arrow keys because the Sequencer Window loses focus after an arrow key is pressed. This is a regression from 4.21.2 (CL-4753647) where repeated arrow key presses will scrub the timeline continually.

This was reported and tested in 4.22 Preview 7 (CL-5531554). This was reproduced in Main 4.23 (CL-5552558)

Steps to Reproduce
  1. Open the UE4 Editor and create a Blank template project
  2. Create a new Level Sequence and click on the timeline
  3. Press Right or Left on the arrow keys
  4. Repeat Step 3

Results: Nothing happens

Expected: The timeline moves one frame to the left or right again

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ComponentTools - Sequencer
Affects Versions4.224.23
Target Fix4.22
Fix Commit5603888
Main Commit5603890
Release Commit5603888
CreatedMar 26, 2019
ResolvedMar 27, 2019
UpdatedApr 4, 2019