Unreal Engine 4.10 Released!

[=SalihBalkan;421585]
This version is unstable. I am sure that I build lighting, but every time I package, it says: “Rebuild lighting! 65 unbuilt objects.” and some objects get totally bright. And there is other serious bug on mobile that may make refractional objects totally invisible. I don’t recommend anyone to work on a serious project on this version. I think Epic Games released this version too early. This should be Preview 5.
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Hi,

Can you post a question on the AnswerHub with the issues that you’re seeing, along with repro steps and any additional information that would be helpful in replicating what you’re seeing?

When you get issues with the rebuild light warning there are several things that can cause this to happen. This is not necessarily a 4.10 issue.

You can also open up the Output Log windows (Window > Developer Tools > Output Log) and enter the console command DumpUnbuiltLightInteractions to see which assets are causing the issue. This information is more helpful in determining where the issue is.

I’m not sure off-hand about the refraction issue on Mobile that you’re describing, but please post this as a separate issue with the device you’re testing on, material setup, whether this is in editor vs device, along with any additional information that can help us look into this more quickly.

Thank you!