# Playtesting from UEFN not possible since v.40.0 **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** unreal-editor-for-fortnite, fortnite\ **Created:** [June 1, 2026, 5:54pm UTC](https://forums.unrealengine.com/t/playtesting-from-uefn-not-possible-since-v-40-0/2725708 "2026-06-01T17:54:30Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Karo-Bube](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/karo-bube/32/1203551_2.png) [@Karo-Bube](https://forums.unrealengine.com/u/Karo-Bube)\ **Post date:** [June 1, 2026, 5:54pm UTC](https://forums.unrealengine.com/t/playtesting-from-uefn-not-possible-since-v-40-0/2725708/1 "2026-06-01T17:54:30Z")
### Summary I cant test my map from UEFN for over a month now. The connection gets always lost before the test start. The once way to test is in private test code, but there is also a problem - when i change the private test code the seesion doest update, so I have to close fortnite every time after change. `Am I alone with that problem or are there other creators with the same issue?` ### Please select what you are reporting on: Unreal Editor for Fortnite ### What Type of Bug are you experiencing? Assets ### Steps to Reproduce I press launch session from UEFN ### Expected Result After a few minutes the playtest starts ### Observed Result the Fortnite client opens an I get the loading screen - but every time after a few minutes the connection to UEFN gets lost. ### Platform(s) PC ---
**Author:** ![Karo-Bube](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/karo-bube/32/1203551_2.png) [@Karo-Bube](https://forums.unrealengine.com/u/Karo-Bube)\ **Post date:** [June 3, 2026, 5:24am UTC](https://forums.unrealengine.com/t/playtesting-from-uefn-not-possible-since-v-40-0/2725708/2 "2026-06-03T05:24:29Z")
There are other creators woh have the same problem… > [@I gets an error when want to connect with uefn session.](https://forums.unrealengine.com/t/i-gets-an-error-when-want-to-connect-with-uefn-session/2725939): > > Summary Hello, guys. I’ve problem with connecting to UEFN session. When i click “Launch Session” i get an error. Please help me. I will be grateful to user, who help me. Please select what you are reporting on: Unreal Editor for Fortnite What Type of Bug are you experiencing? Other Steps to Reproduce You need to click “Launch Session” in UEFN and wait for some times. Expected Result We will to get an error. Observed Result Connecting to session Platform(s) PC Upload an image … ---
**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:** [June 3, 2026, 12:03pm UTC](https://forums.unrealengine.com/t/playtesting-from-uefn-not-possible-since-v-40-0/2725708/3 "2026-06-03T12:03:29Z")
We’re investigating this here: [Players can’t join my map in public, Matchmaking error (errors.com.epicgames.common.processing)](https://forums.unrealengine.com/t/players-cant-join-my-map-in-public-matchmaking-error-errors-com-epicgames-common-processing/2725814) Closing this thread so another ticket isn’t created. ---
**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:** [June 3, 2026, 12:03pm UTC](https://forums.unrealengine.com/t/playtesting-from-uefn-not-possible-since-v-40-0/2725708/4 "2026-06-03T12:03:35Z")
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**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:** [June 3, 2026, 12:05pm UTC](https://forums.unrealengine.com/t/playtesting-from-uefn-not-possible-since-v-40-0/2725708/5 "2026-06-03T12:05:29Z")
@Karo-Bube please also place any new information in that thread.