# Join In Progress causing server lag / hitch **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** fortnite-creative, unreal-editor-for-fortnite, closed, bug-report, fortnite\ **Created:** [June 29, 2025, 9:53pm UTC](https://forums.unrealengine.com/t/join-in-progress-causing-server-lag-hitch/2584632 "2025-06-29T21:53:07Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![twitchSephimm](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@twitchSephimm](https://forums.unrealengine.com/u/twitchSephimm)\ **Post date:** [June 29, 2025, 9:53pm UTC](https://forums.unrealengine.com/t/join-in-progress-causing-server-lag-hitch/2584632/1 "2025-06-29T21:53:07Z")
### Summary I’m reopening the topic from: > [@Join In Progress causing server lag / hitch](https://forums.unrealengine.com/t/join-in-progress-causing-server-lag-hitch/1778419): > > Please select what you are reporting on: Creative What Type of Bug are you experiencing? Assets Summary We’re noticing a server wide lag / stutter / hitch (whatever the technical term here should be) when players join in progress. Testing with friends we’ve found that all players in the game experience a brief lag at the same time that our friend begins to connect to the game from the lobby. From in game, there will be a lag spike, and then a few seconds later the elimination feed with say “{P… It also happens to us on Blade Ball. Not sure if its directly related to Verse Persist, but our players complains a lot about server freezes with someone joins the server. We have checked the code in our side plenty of times but there is nothing that could cause performance issue, especially because the lag happens when the player joins and not when it spawns, and all our logic is on Spawn event. We investigated along with our community players and so far, we notice that its very inconsistent.. but when its happening in a specific server, it happens 80% of the time someone joins (The same player that made the server freeze during the join in progress once, if rejoining, it may not lag… also the other way). Also there are servers that never lags. (We as Devs were never able to reproduce ourselves for instance) Some players suspects that its related to Player ping / player joining a server from a different region. I posted a link with few videos from the community in the comments. It’s more noticeable in high speed rallied but since Blade Ball is a timing skill based game, this is very bad. ### Please select what you are reporting on: Creative ### What Type of Bug are you experiencing? Stability ### Steps to Reproduce Have a server with many players (at least 8), and try to have someone joining / rejoining while the match round runs ### Expected Result Do not lag the server during join in progress ### Observed Result The issue is intermitent, so please make deep investigation. ### Platform(s) All ### Island Code 1443-4058-4106 ---
**Author:** ![twitchSephimm](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@twitchSephimm](https://forums.unrealengine.com/u/twitchSephimm)\ **Post date:** [June 29, 2025, 10:52pm UTC](https://forums.unrealengine.com/t/join-in-progress-causing-server-lag-hitch/2584632/2 "2025-06-29T22:52:20Z")
Here are few examples from the community. In this case, it’s a micro stutter that makes the player action to deflect the ball be ignored and the ball jiggles back and forth and eliminates the player (normal behavior is the ball just go straight to the player if missing the timing) > **[Blade Ball join in progress stutter - Google Drive](https://drive.google.com/drive/folders/1sFakAB3hu-sTNDt2s0rYZtMNym57T-P6)** ---
**Author:** ![twitchSephimm](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@twitchSephimm](https://forums.unrealengine.com/u/twitchSephimm)\ **Post date:** [July 4, 2025, 7:06pm UTC](https://forums.unrealengine.com/t/join-in-progress-causing-server-lag-hitch/2584632/5 "2025-07-04T19:06:04Z")
Got this clip that is very clear the stutter > **[Stutter When Player Joined.mp4](https://drive.google.com/file/d/1nkPju31HufjLchS94OukxQdknvOIZ-8P/view?usp=drive_link)** > > Google Drive file. ---
**Author:** ![AtAshTag](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/atashtag/32/997253_2.png) [@AtAshTag](https://forums.unrealengine.com/u/AtAshTag)\ **Post date:** [July 15, 2025, 4:45pm UTC](https://forums.unrealengine.com/t/join-in-progress-causing-server-lag-hitch/2584632/7 "2025-07-15T16:45:37Z")
Ive noticed this a lot lately in creative games and depending on the amount of players in the game while the hitch happens it can be so bad/frustrating ---
**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:** [September 24, 2025, 10:18pm UTC](https://forums.unrealengine.com/t/join-in-progress-causing-server-lag-hitch/2584632/8 "2025-09-24T22:18:36Z")
FORT-932622 has been ‘Closed’. We’re unable to reproduce this issue. ---
**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\ **Post date:** [December 26, 2025, 9:53pm UTC](https://forums.unrealengine.com/t/join-in-progress-causing-server-lag-hitch/2584632/9 "2025-12-26T21:53:46Z")
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