Adding array element of instanced meshes during simulation does not increase amount of elements in array.

Regression (No) issue (does) occur in 4.10.4

Steps to Reproduce

(Note: Step 7 is not necessary, the issue will occur outside of simulation as well.)

1. Open Editor (QAGame)
2. Create new actor blueprint
3. In new actor blueprint, add instance mesh component
4. Set instance mesh static mesh component to Barrel_02
5. Compile
6. Add a copy of new actor blueprint to level
7. Press Simulate
8 Select new actor blueprint in level viewport while simulation is running
9. Select InstancedStaticMesh in details pane
10. Press '+' next to Instances>Instances>elements

No elements are added

Element is added to instance array.

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ComponentUE - Gameplay - Blueprint
Affects Versions4.11.2
Target Fix4.15
Fix Commit3209457
Main Commit3236017
CreatedMay 9, 2016
ResolvedNov 23, 2016
UpdatedMay 4, 2023