Unreal Engine 4.27.2 launched failed. My PC is win11, it can launch4.26

Development Getting Started & Setup
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1

when I launch UE4.27.2, it will Get stuck at 45% or 75% and other few cases.Till to now ,I have not even see UE4.27.2 start screen. But I can launch 4.26.2. By the way, my pc is win11, hope you can help me, thanks

2

How long have you waited for the project to launch in the 4.27.2 version?

Try to create a blank project and see if it starts.

3

Thanks, I didn’t launch any projects, because the software wouldn’t open, I didn’t have a chance to create projects, I waited all night for the software, and when I woke up in the morning, it was still stuck at 45% or 75%

4

I suggest reinstalling the launcher and the engines or use the verify the engine:

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5

Thank you, I have reinstalled once, and I will try to verity the engine.If that doesn’t work, I’ll use 4.26 or later.

6

The reason is that I installed it on an external SSD, so it can’t be launched.