[Critical] Running live session use 97% of memory after v 40:00 update

Summary

When i run live session to test, forntite it’s use all my memory. Did not happen if i platy game as normal

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Stability

Steps to Reproduce

simple run test session

Expected Result

don’t use all my memory

Observed Result

UEFN will crash after 1-2 Hours

Platform(s)

windows

Additional Notes

i recived UEFN alert memory message asking to close application !!! Memory is released only if i closed UEFN and Fornite session

a GTX5070 on I7 with 32Mb Ram now are no more ?

UEFN mem usage has gone up I believe. Needs to be looked at.

2 Likes

Shocking this, constant annoying pop ups, I have deleted crap and end tasked a lot of stuff in the background
went to medium settings and still get it
Day before had UE / UEFN on and was playing FN and no issues

1 Like

Not only during live session, but it happens when loading a large project as well (68% project size, ~70k memory in-game in my case). For me it becomes unresponsive while syncing changes and even when saving simple changes like adding a device to the level.

1 Like

I have same issue. It started after 40.00 update.

2 Likes

I’m also experiencing this issue, before 40.00 my UEFN was taking like ~6 Gigs when I loaded my map. Only after I switched to Landscape mode or I loaded some parts of my map my memory usage jumped to like ~12 Gigs.
*with World Partition loading in editor → enabled (to save more memory)

Now after 40.00 update UEFN is taking constantly above 12 gigs of RAM

I’m guessing that something weird happened with Landscape mode being now loaded from the start of UEFN. Before 40.00 the Landscape mode was loaded only after you switched to Landscape mode. Looking at the patch notes, the Landscape mode received a few updates, so that’s probably causing it. When I now load my map, my UEFN takes ~12 GB from the start, and when I now load Landscape mode, the memory usage does not go above 12 GB, so that means it was now already loaded and that’s the issue.

2 Likes

Has been happening before 40.00 but much less frequently, but now it is basically all the time.

3 Likes

Is this a new popup? I also can confirm I see it VERY frequently recently but I don’t know if the memory usage rose with the newest patch or if it always was that high except we now can notice it more clearly because of the existence of this popup.

2 Likes

FORT-1077869 has been ‘Closed’ as a duplicate of an existing known issue. Origin Issue: FORT-1079605, Origin Topic: UEFN memory issue after v40.0