When Remove Instance is called for an instance static mesh component, the render state is not properly updated, causing some of the instances to not be visible.
Forcing a call to PostEditChangeChainProperty (ex: updating component details) will update the renderer and cause missing instances to become visible
Yes - Provided repro steps leave 2 instances in 4.16.3 (CL 3561208)
Four instances are added when Y is pressed, then three instances are removed when it is released
Only two instances are removed when Y is released
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