Unreal Engine 4.20 Released!

[Zeblote]

Why is there not a 'flag' button in this section of the forums?

It seems to be missing in several sections. Strange.

[UnrealEnterprise]

It seems to be missing in several sections. Strange.

Epic know about the issue, all the official Epic threads are vulnerable...
The problem is, even the outsourced website team are Fortnite testers.

[ZX.Diablo]

Yup, I modified the file manually by copy-pasting the changes from the fix commit and it worked.

Here's my output log for project generation:

Running $(EngineRoot)/Windows/Engine/Binaries/DotNET/UnrealBuildTool.exe  -projectfiles -project="$(ProjectRoot)/$(ProjectName).uproject" -game -rocket -progress
Discovering modules, targets and source code for project...
$(EngineRoot)\Windows\Engine\Source\ThirdParty\Expat\Expat.Build.cs: warning: Referenced directory '$(EngineRoot)\Windows\Engine\Source\ThirdParty\Expat\expat-2.2.0\Win64\VS2015\Release' does not exist.
WARNING: Precompiled module 'UE4Game' will not be usable without non-precompiled module 'FunctionalTesting'.
WARNING: Precompiled module 'UnrealEd' will not be usable without non-precompiled module 'FunctionalTesting'.
WARNING: Precompiled module 'FunctionalTestingEditor' will not be usable without non-precompiled module 'FunctionalTesting'.
WARNING: Precompiled module 'UnrealEd' will not be usable without non-precompiled module 'FunctionalTesting'.

Any thoughts?

[TG_Daniel]

Oh, I have the exact same problem with 4.19! I already thought its something wrong only for me, great to hear you have the same problem.

Does anyone know more about this?

I think I've finally figure out what is causing this issue.

If you have this line r.compileshadersfordevelopment=0 in your DefaultEngine.ini you have to remove it or comment it.

This seems only to affect UE Source versions, not the Vanilla (the one from Epic Launcher).

[DaYuShen]

No mention of RichText?
You changed how it works, so now the community plugin doesn't work and will probably be a giant hassle to get to work again.

It would be fine if the one you made actually worked, but it doesn't.

Hi,do you know how to show text on 4.20 richtextblock?

[diamond3]

Switching viewmodes with keyboard shortcuts like Alt+1, Alt+2, Alt+3 etc not working in UE4.20.1.
Can anybody confirm the same?

[RVillani]

Switching viewmodes with keyboard shortcuts like Alt+1, Alt+2, Alt+3 etc not working in UE4.20.1.
Can anybody confirm the same?

Those work for me. So either not an engine bug or a rare one that depends on other specific conditions.

[Tom Sarkanen]

HLOD gets stuck in an infinite loop with complicated projects. I've tracked it down to here:

const AActor* UHLODProxy::FindFirstActor(const ALODActor* LODActor)
{
auto RecursiveFindFirstActor = [&](const ALODActor* InLODActor)
{
const AActor* FirstActor = InLODActor->SubActors.IsValidIndex(0) ? InLODActor->SubActors[0] : nullptr;
while (FirstActor != nullptr && FirstActor->IsA<ALODActor>())
{
const ALODActor* SubLODActor = Cast<ALODActor>(FirstActor);
if (SubLODActor)
{
SubLODActor->SubActors.IsValidIndex(0) ? SubLODActor->SubActors[0] : nullptr;
}
else
{
// Unable to find a valid actor
FirstActor = nullptr;
}
}
return FirstActor;
};

The body of if (SubLODActor) doesn't actually do anything, guaranteeing an infinite loop if the FirstActor is an ALodActor.

It looks like in the body of that if statement it should be looping through all sub ALODActors and a recursive call on each until it gets a non-ALODActor or nullptr.

Thanks for the report. This is tracked as UE-62838.

[Shmoopy1701]

Anyone notice if you:

- right click an actor
- select Attach To >> another Actor >> select Socket

In 4.20 it no longer snaps the attached actor to the socket location?

[muchcharles]

Thanks for the report. This is tracked as UE-62838.

edit: opps, this was wrong, it does look mostly ok. I added another comment on github where it could fail, but I'm not sure it is a case that can ever happen.



was:

I looked through the fix, and it seems wrong. Before calling RecursiveFindFirstActor a comment says "// Retrieve first 'valid' AActor (non ALODActor)", but with the fix if it ever calls RecursiveFindFirstActor, it will only return ALODActors.

[unrealgir]

I'm missing something about the glTF 2.0 importer though.
Today, a peerson ask me a question." Does the xbox 360 play blu ray？”the xbox 360 play blu ray

[Calibanul]

is just me or the material editor takes a lifetime to compile

[silvermehran]

Well, skeletal alembic import is having a lot of problems in this release. Importing time is ridiculously high. some objects not importing etc...

[RVillani]

is just me or the material editor takes a lifetime to compile

Yes. But only if you use XGE with IncrediBuild, it seems, which is default now. It's using a single ShaderCompileWorker, instead of 1 per thread.
My compilations got a lot faster by disabling it on [engine install folder]/Engine/Config/ConsoleVariables.ini

r.XGEShaderCompile = 0

[capo102]

i just love the knowledge flowing here, so happy to be here, learning every day