Summary
After the update of UEFN and Fortnite, two incidents of severe memory leakage occurred.
1.GPU/RAM simultaneous memory full-load issue while using UEFN During work in UEFN, sudden performance degradation occurred → system froze
Both GPU memory and system RAM reached 100% usage
Even after quitting UEFN, memory usage remained abnormally high
Task Manager showed UEFN process continuously consuming memory
After ending the task through the system window, memory returned to normal
2.Memory leak from EpicWebHelper while apps not in use UEFN and Fortnite were both closed, and no other apps were running
The system slowed down, and RAM usage reached 100%
Task Manager showed EpicWebHelper excessively consuming memory
After ending the task, memory returned to normal
First occurrence: July 29, 2025, after Fortnite and UEFN update GPU driver: NVIDIA Studio Driver, latest version
OS: Windows 10 Pro CPU: Intel GPU: NVIDIA 2080 (using latest Studio Driver version) RAM: 64GB
Please select what you are reporting on:
Unreal Editor for Fortnite
What Type of Bug are you experiencing?
Memory
Steps to Reproduce
At the time of the issue, both Brave and Chrome browsers were running, and YouTube was playing in fullscreen mode on the Brave browser
Expected Result
Simultaneous use of web browsers, Brave and Chrome
Observed Result
Computer freezes when memory is full
Platform(s)
pc