Developer Notes

This issue has been closed as 'Won't Fix' due to an extended period of time without updates. If this issue is important to you please let us know by posting on the AnswerHub or UDN, and Epic will re-open the ticket for further review.


Emitter modules that are set to the "High" detail mode are removed when changing the engine scalability settings to "low", but not replaced when setting them back to "Epic." The emitter is updated correctly in cascade, but not in world. Building or simulating the level updates the emitter to its correct settings.

Steps to Reproduce
  1. Open or create a project with starter content.
  2. Open P_Fire
  3. Click on the two "Flames" modules and set their Detail Mode to "High."
  4. Save the asset
  5. Place P_Fire into the world.
  6. Change the "Effect" section of the engine scalability settings to low (located in the settings menu of the editor toolbar)
  7. Change the Effects settings back to Epic

Observe that the flames do not spawn when reverting the detail mode back to it's maximum.

Have Comments or More Details?

Head over to the existing Questions & Answers thread and let us know what's up.

Login to Vote

Won't Fix
ComponentUE - Niagara
Affects Versions4.
Fix Commit3570581
Main Commit3594404
CreatedSep 23, 2015
ResolvedAug 18, 2021
UpdatedSep 19, 2021
View Jira Issue