UE4 freeze after double clicking or editing constant 3 vectors

Hi everyone,

Each time I double click or try to edit a constant 3 vectors in the material editor UE4 freeze and is not responding.
It is the same result with both 4.8.0 and 4.7.6.
My GPU is updated to the latest driver.
Here is my config
MSI ghost pro gs60
16 gb ram
GeForce gtx 970m
i7 5700HQ 2.7 GHZ

Thanx for your help guys

Erwan

Hi waner_garouche,

Does this occur in a material with just one constant 3 vector or is it only in a more complex material? What specific steps are you taking that reproduce this on your end?

Hello , thank you for your answer. I m just trying to follow the material tutorial. The material could not be more basic. I m just trying to assign a color to a material, nothing more. I forgot to say that this freezing occurs also when I try to import an fbx.

Do you have “live update” active or are you manually applying updates? Do you see any shaders compiling? Additionally, how long do you wait before shutting down the editor?

Hello ,

Live update is not active. I have made a research but I am very newbee in UE4 and I can t figure out how to see if any shader is compiling…
The engine is really freezed and even after waiting 15mn it is still freezed.

Does this occur in a clean, blank project with no additional content or is it limited to one project?

Yes it occurs in a blank project without nothing in it just the table and the two chairs of the template.
The only thing I did was trying to add the example scene with vegetation but I never figure out how to visualize it. I hit the button “add to project” but nothing happened. Since I create a new project clean and the freezing problem is the same.

Hi waaner_garouche,

I’m attempting to reproduce this on my end but thus far have been unsuccessful. What specific steps are you taking that cause this freeze to occur. Here is what I’ve done so far, please let me know if you are doing anything else:

  1. Open Editor (any project)
  2. Create new material
  3. Add a Constant 3 Vector by pressing 3 + LMB in event graph
  4. Change the G value to 1
  5. Double click 3 vector node
  6. Plug output pin into base color
  7. Double click 3 vector node

Hi

I followed the steps.
I can change the G value to 1 by editing it into the left window but as soon as I double click the node, everything freezes. The window of the color picker doesn t pop up. It stays stucked in my Windows 8.1 task bar.
Maybe it is a problem with windows???

Something new happened.

It try to follow the material tutorial without double clicking the color picker. But as soon as I add a constant parameter by drag and drop from the right palette I have a runtime Error:

Microsoft Visual C++ Runtime library
runtime error!
Program: C:\Progr…
R6025
pure virtual function call

And then windows shuts down UE4

Are you using the binary version of the editor or the github branch? Additionally, which OS are you using?

Like I said in a previous post I m running windows 8.1.
For the binary version or github branch I m not 100% sure. How can I check that?
I ve just download the engine from the official site and then install and run it. I ve never mess around with “githud” things, just install and run it.

Hi waner_garouche,

Do you get these freezes with any other program or is it limited to UE4?

Hi ,

My computer used to freeze also with google chrome but since I ve made updates it is no more the case. But even after these windows updates, UE4 is still freezing…

Have you recently updated your GPU drivers? Additionally, do you have the editor and swarm agent set up as exceptions in your firewall?

Yes my GPU is up to date (it’s the first thing I’ve checked).
I tried to run UE4 with both my firewall and my antivirus disabled but the result is always the same UE4 is still freeeeeeezing!

Try verifying your engine. I still haven’t been able to reproduce this on my end. If you go to your launcher>library and click the dropdown context menu next to your engine then press “verify”, it will check your engine folders for any missing/damaged files and repair/replace them. Additionally, can you post a copy of your full dxdiag here so I can take a look? Thank you!

Hello ,
Always the same even after verifying the engine.
Here is my dxdiag
link text

Can you send me an asset that is experiencing this behavior? I don’t see anything in your dxdiag that would cause this to my knowledge. It is possible that the laptop is trying to use your Intel Integrated HD instead of the Nvidia, but that is not likely.

Hello ,
I could send you an asset but I’m quite sure my problem have nothing to do with that because it occurs also when I create a brand new material…
Is there a way to check if the engine is using the integrated HD instead of the Nvidia?