Reference ID
c25ee222-452a-85f3-4223-c08996a2a608
Please select what you are reporting on:
Unreal Editor for Fortnite
What Type of Bug are you experiencing?
Stability
Summary
UEFN is freezing for 5s → catch up for 1s → freeze again indefinitly. Happens randomly, often when the CPU workload increase (Verse build for example).
Steps to Reproduce
I launch my map in UEFN. When the CPU workload increase (it can be a Verse build or a Material save/compilation), it starts the freezing cycle. I don’t know if it’s a prop causing the issue, or anything else. The freezing doesn’t happen when I’m only moving/placing objects, can be for hours. But when I do a Verse build or material compilation, it is instantly triggering the problem, each time.
Expected Result
It should work perfectly, without any lag, epic quality, 185fps, as it used to do in UEFN some weeks ago on this very same computer.
Observed Result
UEFN is totally freezing for 5-7s on average, then it’s back to normal for 0.5s to 1s, than if freeze again. It never ends until I restart UEFN.
Platform(s)
windows 11, AMD Ryzen 9 5900X, Nvidia 4070Ti, 32GoRAM, VSCode (I tried to reinstall Verse VSCode extension, did not reduce the frequency of the problem)
Additional Notes
I did not install any new software on my computer, I have free disk space on my SSDs, set UEFN cache to 20Go. I tried to change preview platform, reduce the quality to low on everything. Unchecked monitor performance. Run fortnite session on another PC while having UEFN on my main PC. Searched on UEFN forums, reddit, nothing helped.
Island has 500k Objs. Can go up to 8go of memory. My CPU usage is normal, GPU is low.
If I can provide you a minidump or anyhting to help you identify the issue, feel free to ask me. Thank you so much.
