The 'Add New Key' button does not function within the Actor Sequence Editor within an object that has the Actor Sequence Component.

The Actor Sequencer Timeline appears to not be able to correctly recognize the variables manipulated within the viewport. Thus, when attempting to add a keyframe after moving a component, within the viewport, the add keyframe button does not correctly reflect the transform.

This was reported and tested in 4.20 (CL-4212847). This issue was reproduced in 4.19.2 (CL-4033788) and Main 4.21 (CL- 4233289)

1. Open the UE4 Editor and create a blank project
2. Enable Actor Sequence Editor plugin and reload the project
3. Create a new Actor Blueprint
4. Add a Cube Static Mesh Component and nest it under DefaultSceneRoot
5. Add an Actor Sequence Component
6. Select the Actor Sequence Component, Click Sequence -> Open in Tab
7. In Sequencer, use '+' Track to add the Cube Component to the timeline
8. '+' Track in Cube and select Transform
9. Use the "Add a new key at current time" '+' button
10. In Components, select Cube Component and set X location of Transform to 100
11. Use the "Add a new key at current time" + button

Results: In the [Actor] Sequencer Timeline, the location of the Cube Component is not set to the Transform of the Cube Component within the viewport, and is instead set to the default transform.

Expected: The Cube Component's transform should be added to the timeline at the current time.