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.


2 GB/hr Memory Leak on maps with no Sky Sphere or Atmospheric Fog to occlude empty space. The leak also occurs during general usage, but was tested with a blank project and an absolutely blank level.

Steps to Reproduce

1. Create a blank project
2. Make a new, blank map
3. Go to Edit>Editor Preferences
4. Find General>Miscellaneous and enable "Show Frame Rate and Memory"
5. Close preferences
6. Click in the viewport
7. Wait with the editor in focus (slows down if editor loses focus)

Result: Memory rises at a rate of about 0.5 MB/second or 2 GB/hour
Expected: With nothing in the map, the memory usage is expected to remain constant.

Note: This occurs with other levels that aren't blank too, simply delete the sky sphere/Atmospheric Fog and zoom out so you can see off into the distance

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Won't Fix
ComponentUE - Rendering
Affects Versions4.104.114.12
CreatedFeb 19, 2016
ResolvedJan 6, 2017
UpdatedApr 27, 2018