Is this a common issue with ue5.4.4 , or is there a setting I’ve missed?
Documentation
Just open it and try to scroll it…like trying to run through peanut butter in lead boots.
No lag?
Lag
ue5.4.4
win11
hi @CrazedTrucker , sorry you’re experiencing problems. This is a weird bug that appears from time to time, first advice I got from the team was to close and relaunch the UE and if this persists try to lower a resolution of the engine screen a bit.
If none of this helps would you be willing to share your logs and machine specs? This might help us debug
The status of EMP-14030 incident has been moved from ‘New’ to ‘Needs Triage’.
| Device name | DESKTOP-1HO8BJQ |
|---|---|
| Processor | Intel(R) Core™ i9-10900 CPU @ 2.80GHz 2.81 GHz |
| Installed RAM | 32.0 GB (31.8 GB usable) |
| System type | 64-bit operating system, x64-based processor |
RTX 2080 super
32 gb gpu ram
currently using driver ver. - 566.03 game ready drivers .
using 60 inch samsung at 4k.
Changing the resolution did not help , tried them all , rebooted , engine several times with no affect , it’s not the engine lagging , it’s the fab app…as soon as I open it so I fail to see how lowering resolution helps this problem anyway. The fans on my pc kick into high , and I have literally never heard the fan on my liquid cooler do that. Opening the fab app almost bricks my pc.
Quixel never did that so what’s the difference between the 2 programming wise? Besides the obvious - that is a resource hog.
Could you please ask the team to post a screen recording of scrolling and opening/closing sidebar in the in-engine FAB plugin along with their PC build specs?
I have yet to see literally a single combination of hardware, OS and drivers that runs the in-engine FAB plugin above single digit framerates.
The “have you tried turning it off and on again” answer is a cherry on top, not in a good way.
I’m also having the same issue with the Fab plugin being incredibly sluggish to use.
At native 4k, the plugin is barely usable, but if I change GPU display resolution in Nvidia control panel to 1080p, the plugin is nice and smooth.
It also seems the larger the fab plugin window, the slow the plugin goes. If I keep the window small enough it’s OK, but beyond a certain window size it comes to a halt.
Changing the engine and viewport resolution scaling made no difference, nor did the High DPI Editor Settings.
The engine editor itself runs perfectly fine - it’s just the Fab plugin interface that runs in slow motion. The actual fab assets pull up quickly enough, so it doesn’t seem to be a server issue.
Suffice to say, it’s less than ideal to have to manually swith resolutions if I want a decent plugin experience 
Unreal Version: 5.5.1-38445549
| Specs | |
|---|---|
| Platform | Windows 11 (Version 10.0.22631 Build 22631) (x86_64) |
| Processor | AMD Ryzen 5 3600 6-Core Processor 3.60 GHz |
| Graphics | Nvidia RTX 2060 Super 8GB |
| RAM | 32.0 GB 3200 MHz |
| Storage | 1TB Western Digital NVMe WDS100T3X0C |
I have two monitors: 4k and 1080p. So, Fab works fine in 1080 and awful in 4k. It is crazy in 2024 to see that…