Particle Systems Don't Play In Reopened Levels With ES 3.1 Enabled

anonymous_user_3e102909
Wed, 20 May 2020 12:26:42 +0000
FX

I have report this issue in UE-87537. The feedback is that It cannot reproduce. But I try to the followed steps and it reproduce(UE4.25). The issue is reproduced in both editors that i use source code to build or get from epic launch. The
Reason that it cannot reproduce maybe that in the followed 5 step, QA double click the level the particle was added to. If click the level twice, it will create the fxsystem in second click in UEditorEngine::Map_Load.

1. Create a new project.

2. Enable Android ES 3.1 Preview Settings.

3. Add a new particle system to a the level and save the level.

4. Open a different level.

5. Open the level the particle was added to.

Expected: The particle system doesn’t play.

Results: The particle system plays as expected.

And I try to fix it as followed, It can work.

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