Master branch - crash scrolling through list on ParticleEmitterReference entity

[ghramsey]

While scrolling through the list on these ParticleEmitterReference entities it takes a moment to draw the details window and it crashed twice.

This is Master version 14.0 not staging this time.
Screenshot shows the map and composite.

The specific symptom is hesitation while drawing the window.
Something, I should also note happens in the bug that Jeff and I have experienced in staging.
This might be a duplicate or just related. And in this case it is consistent enough that it happened 2x in a row.

[ghramsey]

Just a note this seems to not happen on staging.

[MattFiler]

Thanks for the update, I'll mark it as fixed but shout if it happens again