Description

On project upgrade, SubImageIndex breaks until you re-assign SubUV Animation

Attached project is a 4.11 project, you'll need to Open a Copy in 4.12 or 4.13

Steps to Reproduce

1. Download the attached project (includes a particle system with two SubImage emitters)
2. "Open a Copy" of the project in 4.12 (or 4.13)
3. Open the emitter and look at the viewport
4. Go to the second emitter's SubImage Index module
5. Re-assign the exact same SubUV Animation that is already present

Result: Emitter on the right is broken at step 3
Expected: Both emitters still work properly without having to re-assign the SubUV Animation

Have Comments or More Details?

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Cannot Reproduce
ComponentUE - Graphics Features
Affects Versions4.124.13
Target Fix4.13
CreatedJun 20, 2016
ResolvedJul 1, 2016
UpdatedMay 2, 2018
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