AI Assistant – Performance and Code Handling Bug (Webpage & UEFN)

Summary

The AI assistant becomes unresponsive and exhibits severe performance degradation during conversations in both the webpage and UEFN environments.
The assistant stops typing or sending messages after several exchanges in the same conversation.

Please select what you are reporting on:

Verse

What Type of Bug are you experiencing?

AI

Steps to Reproduce

Start a conversation with the AI assistant (Webpage or UEFN).
Provide code snippets and continue exchanging several messages in the same conversation.
Observe slowdown, inability to type, and improper code formatting.
Repeat in different browsers and accounts — issue persists.

Expected Result

AI assistant should remain responsive throughout the conversation.
Code should be displayed fully and properly formatted with code markdown.
INP values should remain stable around 40–50 ms.

Observed Result

Severe input lag after a few messages in the same conversation.
INP values escalate to 5000–20000 ms.
Code snippets are incomplete and improperly formatted.
Displays raw code as plain text instead of using proper code markdown formatting.
Assistant becomes unresponsive to further input.

Platform(s)

Webpage (tested in Firefox, Edge)
UEFN (latest build)
Issue confirmed across multiple user accounts

Additional Notes

Please fix this issue as soon as possible because the AI assistant has been extremely helpful in my learning/coding process with UEFN.

I tried using the Brave browser but got the same result!
I can’t input messages or feed code.

When I type something, it takes too long to appear in the chat box. Normally, input latency (INP) is 24 ms, but typing in the AI assistant takes 13,664 ms.

Yeah it become worse now

If anyone has seen this report please vote to get this bug fixed!
it would help me a lot.
@Bug-Reporter

Any progress since the last report?

generates empty code blocks, copy code is blank :face_exhaling:

its basically unusable, until late at night for me in europe it seems to get a little better. but while the verse code it generates has really improved lately, the response is awful i propably get a response one in 5 times i ask. and it often just thinks for as long as ill leave it.

The status of FORT-1070978 changed to ‘Needs Triage’. We’ve confirmed the issue and it’s waiting to be assigned to someone to fix it.