# Fab is not opening inside engine (5.5)

**URL:** <https://forums.unrealengine.com/t/fab-is-not-opening-inside-engine-5-5/2545148>\
**Category:** Issues & Bug Reporting (Fab)\
**Tags:** system, engine, unreal-engine, question, fab\
**Created:** [June 7, 2025, 10:37am UTC](https://forums.unrealengine.com/t/fab-is-not-opening-inside-engine-5-5/2545148 "2025-06-07T10:37:44Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Oozi98](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Oozi98](https://forums.unrealengine.com/u/Oozi98)\
**Post date:** [June 7, 2025, 10:37am UTC](https://forums.unrealengine.com/t/fab-is-not-opening-inside-engine-5-5/2545148/1 "2025-06-07T10:37:44Z")

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### Summary

When I try to open fab inside engine (v5.5), I keep getting the verification pop-up. After I verify, it keeps on repeating.

I’ve never encountered this before in any of my project on any version of the engine.

Has someone encountered this before? Know a fix?

Cheers

### What type of bug are you experiencing?

Plugins

### Steps to Reproduce

1. Open Unreal Engine (I use v5.5)
2. Go to Window → Fab
3. The verification pop-up should appear and keep on reappearing

### Expected Result

Fab opens and is working properly

### Observed Result

Fab opens, but with the verification pop-up and keeps on reapeating the verification process.

### Platform

Unreal Engine 5.5

### Operating System

Windows

### Upload an image

 ![s1.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/c/c/b/ccbe7e82e7111579d85b3a9b500e79c32afd8a68.png)

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**Author:** ![Marky29](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Marky29](https://forums.unrealengine.com/u/Marky29)\
**Post date:** [July 13, 2025, 5:41pm UTC](https://forums.unrealengine.com/t/fab-is-not-opening-inside-engine-5-5/2545148/2 "2025-07-13T17:41:44Z")

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Was there ever a solution to this? This is happening for me in unreal 5.5

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**Author:** ![Iroh9950](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/iroh9950/32/1086155_2.png) [@Iroh9950](https://forums.unrealengine.com/u/Iroh9950)\
**Post date:** [July 14, 2025, 7:15pm UTC](https://forums.unrealengine.com/t/fab-is-not-opening-inside-engine-5-5/2545148/3 "2025-07-14T19:15:01Z")

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Please reach out to our support team for assistance resolving this - [https://support.fab.com/s/?ProductOrigin=FabSupport](https://support.fab.com/s/?ProductOrigin=FabSupport)