In a Blueprint Timeline, the Add Selected Curve Asset button doesn't function properly when a Float Track has already been added to the Timeline

When selecting the Add Selected Curve Asset button with a Float Track in a Timeline, nothing appears to happen. However, if you delete the Float Track and then either add another Float Track or add a Selected Curve Asset, then you will add the track you chose in addition to a track of the curve asset based on how many times you selected Add Selected Curve Asset before deleting the first Float Track. This does not happen when adding a Vector or Color Curve in the Timeline.

Tested in //UE4/Release-4.26 @ CL 15973114 and this did occur, so NOT marking as a Regression.

1. Right-click in the Content Browser and select Misc. > Curve
2. Select CurveFloat
3. Create or open a Blueprint Actor asset
4. In the Event Graph, add a Timeline after the BeginPlay event
5. Double-click the Timeline node to open the Timeline editor
6. Add a Float Track
7. Choose the Curve from the Content Browser
8. Back in the Timeline editor, press the Add Selected Curve Asset button few times
9. Delete the Float Track
10. Press the Add Selected Curve Asset button

RESULT:

When pressing the Add Selected Curve Asset button when a Float Track exists in the timeline, nothing will happen, then after deleting the Float Track and adding another Floak Track or a Curve Asset, the timeline will be populated with multiple tracks depending on how many times you pressed the Selected Curve Asset button.

EXPECTED:

The Selected Curve will be added to the timeline when the button is pressed

[UE-23848] Bug Status

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