# 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:** 1\ **Showing post:** 2
**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 … --- _[View the full topic](https://forums.unrealengine.com/t/playtesting-from-uefn-not-possible-since-v-40-0/2725708)._