# Scene Graph - Major FPS drops using KFM

**URL:** <https://forums.unrealengine.com/t/scene-graph-major-fps-drops-using-kfm/2703304>\
**Category:** Issues and Bug Reporting\
**Tags:** Reso-WontDo, Status-Closed, fortnite-creative, unreal-editor-for-fortnite, SceneGraph, fortnite\
**Created:** [March 3, 2026, 12:41am UTC](https://forums.unrealengine.com/t/scene-graph-major-fps-drops-using-kfm/2703304 "2026-03-03T00:41:27Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![michll](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@michll](https://forums.unrealengine.com/u/michll)\
**Post date:** [March 3, 2026, 12:41am UTC](https://forums.unrealengine.com/t/scene-graph-major-fps-drops-using-kfm/2703304/1 "2026-03-03T00:41:27Z")

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### Summary

I’m experiencing significant FPS drops whenever KFM is active.

Due to the project’s scale and the long wait times for push changes, I cannot provide a minimal reproducible example right now. However, I have recorded a video demonstrating the issue below.

If anyone from the Epic team could look into this, I am more than happy to share the project files, logs, or any additional data required via a private channel.

Video Below

### Please select what you are reporting on:

Verse

### What Type of Bug are you experiencing?

Stability

### Steps to Reproduce

Activate KFM on entity which has nested entities with multiple/specific components? [GUESS]

### Expected Result

Performance is stable/is not degrading at that scale

### Observed Result

Performance is degrading heavly

### Platform(s)

All

### Island Code

2007-4387-0287

### Video

> **[kfmissue.mp4](https://drive.google.com/file/d/1qaEv5x9ASnP-BXPI4F4GVFmWZRqyomUa/view?usp=sharing)**
>
> Google Drive file.

### Additional Notes

The only thing changed between video cuts is the commented/uncommented .Play()

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<div class="post-metadata">

**Author:** ![Flak](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/flak/32/769441_2.png) [@Flak](https://forums.unrealengine.com/u/Flak)\
**Post date:** [March 3, 2026, 12:25pm UTC](https://forums.unrealengine.com/t/scene-graph-major-fps-drops-using-kfm/2703304/3 "2026-03-03T12:25:32Z")

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Thank you, getting someone to take a look.

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<div class="post-metadata">

**Author:** ![michll](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@michll](https://forums.unrealengine.com/u/michll)\
**Post date:** [March 3, 2026, 2:41pm UTC](https://forums.unrealengine.com/t/scene-graph-major-fps-drops-using-kfm/2703304/4 "2026-03-03T14:41:43Z")

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Thanks for the quick response! If you need any additional info, let me know

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**Author:** ![Flak](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/flak/32/769441_2.png) [@Flak](https://forums.unrealengine.com/u/Flak)\
**Post date:** [March 4, 2026, 4:36pm UTC](https://forums.unrealengine.com/t/scene-graph-major-fps-drops-using-kfm/2703304/5 "2026-03-04T16:36:11Z")

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We do! Could we get your logs after you reproduce the issue?

> [@How to get your Fortnite logs](https://forums.unrealengine.com/t/how-to-get-your-fortnite-logs/682382):
>
> At times, we will ask you to send us your logs when you’re having an issue in UEFN. Here is how to do that: UEFN Logs Exit Fortnite. Click on Start or press the Windows Key + R. Type \AppData\Local\UnrealEditorFortnite\Saved\Logs and press Enter. Zip your Logs folder and attach the zip file to your reply. To find UEFN Logs while working in UEFN: Click “Output Log” at the bottom of the window. Click on “Setting” at the top right of the window Click “Open Source Location” Zip your Logs folder…

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<div class="post-metadata">

**Author:** ![michll](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@michll](https://forums.unrealengine.com/u/michll)\
**Post date:** [March 4, 2026, 5:13pm UTC](https://forums.unrealengine.com/t/scene-graph-major-fps-drops-using-kfm/2703304/6 "2026-03-04T17:13:31Z")

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I’ve sent the logs via private message, if that’s alright

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**Author:** ![HimboHouse](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/himbohouse/32/746991_2.png) [@HimboHouse](https://forums.unrealengine.com/u/HimboHouse)\
**Post date:** [April 20, 2026, 1:09am UTC](https://forums.unrealengine.com/t/scene-graph-major-fps-drops-using-kfm/2703304/8 "2026-04-20T01:09:29Z")

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Bumping because this issue is affecting me

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**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\
**Post date:** [August 30, 2026, 12:42am UTC](https://forums.unrealengine.com/t/scene-graph-major-fps-drops-using-kfm/2703304/9 "2026-08-30T00:42:20Z")

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This topic was automatically closed after 180 days. New replies are no longer allowed.

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**Author:** ![Bug-Reporter](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/bug-reporter/32/997076_2.png) [@Bug-Reporter](https://forums.unrealengine.com/u/Bug-Reporter)\
**Post date:** [November 6, 2026, 5:01pm UTC](https://forums.unrealengine.com/t/scene-graph-major-fps-drops-using-kfm/2703304/10 "2026-11-06T17:01:40Z")

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The status of FORT-1064701 changed to ‘Needs Triage’. We are routing this to the appropriate team for investigation.