Removing HISMs in a packaged project causes meshes to remain and flicker in a packaged project.

(Inclusive Nativization is enabled in test project, but issue occurs with nativization disabled as well.)

Also Occurring in Main @ CL 4235929

Steps to Reproduce

4.19 Sample project attached

1. Create a BP class based on actor

2. Add a HISM component as root component, set a mesh

3. On Begin Play, add some instances, delay 5 seconds, and remove all these instances.

4. Test in PIE, the instances are properly created and removed.

5. Package 

Result in Packaged project: The instances are removed after 5 seconds, but if you fly around they will reappear with some flickering.

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Affects Versions4.20.1
Target Fix4.21
Fix Commit4440850
Main Commit4450599
Release Commit4440850
CreatedAug 2, 2018
ResolvedOct 9, 2018
UpdatedOct 11, 2018