# When launching a session in Unreal Editor, the uploading part is extremely slow and fails most of the time. **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** closed, unreal-editor-for-fortnite, bug-report\ **Created:** [February 24, 2026, 8:36pm UTC](https://forums.unrealengine.com/t/when-launching-a-session-in-unreal-editor-the-uploading-part-is-extremely-slow-and-fails-most-of-the-time/2702059 "2026-02-24T20:36:33Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Vector1900](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Vector1900](https://forums.unrealengine.com/u/Vector1900)\ **Post date:** [February 24, 2026, 8:36pm UTC](https://forums.unrealengine.com/t/when-launching-a-session-in-unreal-editor-the-uploading-part-is-extremely-slow-and-fails-most-of-the-time/2702059/1 "2026-02-24T20:36:33Z")
### Summary Details: Project size ~700MB takes 25–30 minutes to upload Sessions fail after long wait times with random errors Previously this same project launched 5–10x faster Internet connection is stable (600+ Mbps upload) Region: UAE Platform: PC This is clearly related to a server issue, Europe servers are working totally fine. This is not a player support issue. It affects development workflow directly and appears to be a backend stability problem. Another creator has already reported nearly identical behavior recently, so this may not be isolated. ### Please select what you are reporting on: Unreal Editor for Fortnite ### What Type of Bug are you experiencing? Other ### Steps to Reproduce Press Launch Session in UEFN ### Expected Result Should launch within 2-5 minutes ### Observed Result Takes around 20-30 minutes and fails ### Platform(s) PC / Windows ---
**Author:** ![thrax207](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@thrax207](https://forums.unrealengine.com/u/thrax207)\ **Post date:** [February 27, 2026, 2:44pm UTC](https://forums.unrealengine.com/t/when-launching-a-session-in-unreal-editor-the-uploading-part-is-extremely-slow-and-fails-most-of-the-time/2702059/2 "2026-02-27T14:44:52Z")
I’m the author of the other post, I believe mine has been wrongly closed: [UEFN Launch Session takes incredibly long all of a sudden - #5 by Bug-Reporter](https://forums.unrealengine.com/t/uefn-launch-session-takes-incredibly-long-all-of-a-sudden/2702005/5) This is clearly a server side issue of UEFN servers in at least Middle East. Can someone check this from the epic team? Feel free to reach out to me if you need help replicating. ---
**Author:** ![thrax207](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@thrax207](https://forums.unrealengine.com/u/thrax207)\ **Post date:** [March 2, 2026, 2:09pm UTC](https://forums.unrealengine.com/t/when-launching-a-session-in-unreal-editor-the-uploading-part-is-extremely-slow-and-fails-most-of-the-time/2702059/4 "2026-03-02T14:09:54Z")
![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/c/b/9/cb9e74b245de954ed66a1cb733229879e05b401e.png) I switched to Europe using VPN and it seemed to work for a bit, now today impossible to do launch session. I tried multiple projects of mine and its not working. We also tried ASIA, same result: ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/6/6/0/6600d4a53bf25b1adec0037724a451ffa4c12e6f.png) ---
**Author:** ![Vector1900](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Vector1900](https://forums.unrealengine.com/u/Vector1900)\ **Post date:** [March 2, 2026, 2:31pm UTC](https://forums.unrealengine.com/t/when-launching-a-session-in-unreal-editor-the-uploading-part-is-extremely-slow-and-fails-most-of-the-time/2702059/5 "2026-03-02T14:31:57Z")
@Flak Please take a look at this! Lot’s of issues with Launch Session in UEFN. ---
**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 2, 2026, 6:07pm UTC](https://forums.unrealengine.com/t/when-launching-a-session-in-unreal-editor-the-uploading-part-is-extremely-slow-and-fails-most-of-the-time/2702059/6 "2026-03-02T18:07:09Z")
Hi @Vector1900 Could we get your UEFN logs after launching a session fails, so we can investigate? Thank you! ---
**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 2, 2026, 6:07pm UTC](https://forums.unrealengine.com/t/when-launching-a-session-in-unreal-editor-the-uploading-part-is-extremely-slow-and-fails-most-of-the-time/2702059/7 "2026-03-02T18:07:33Z")
> [@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… ---
**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, 8:02pm UTC](https://forums.unrealengine.com/t/when-launching-a-session-in-unreal-editor-the-uploading-part-is-extremely-slow-and-fails-most-of-the-time/2702059/8 "2026-03-03T20:02:25Z")
> ---
**Author:** ![thrax207](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@thrax207](https://forums.unrealengine.com/u/thrax207)\ **Post date:** [April 13, 2026, 7:12am UTC](https://forums.unrealengine.com/t/when-launching-a-session-in-unreal-editor-the-uploading-part-is-extremely-slow-and-fails-most-of-the-time/2702059/11 "2026-04-13T07:12:26Z")
This is still happening for me on / off. I can’t find the pattern yet. I do switch between projects often, perhaps this might mess with the cache or something. Eventually I get in my session, but I need to press Launch Session 4-5x, takes way to long and hangs often on Initializing, or uploading (takes very long). Usually I get an error, then just try again, and eventually I get it. ---
**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:** [June 8, 2026, 4:02pm UTC](https://forums.unrealengine.com/t/when-launching-a-session-in-unreal-editor-the-uploading-part-is-extremely-slow-and-fails-most-of-the-time/2702059/12 "2026-06-08T16:02:47Z")
FORT-1063426 has been ‘Closed’. The issue reported is not caused by a bug in the tool. ---
**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\ **Post date:** [August 23, 2026, 8:37pm UTC](https://forums.unrealengine.com/t/when-launching-a-session-in-unreal-editor-the-uploading-part-is-extremely-slow-and-fails-most-of-the-time/2702059/13 "2026-08-23T20:37:23Z")
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