viewport flickering (black grid)

Development Rendering
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1

Today I updated my Unreal Engine from 4.2.1 to the 4.4.0 version. I am know experiencing a black flickering grid over my in-editor viewport after I start working in the scene. How can I solve this? It remembers me of old bug in Sketchup that also had this flickering, around that time it was caused by opengl issues, maybe that’s also the case here?

  • When I open a template with build lighting everything is fine
  • As soon as I add a brush or anything / build lighting is removed, the black flickering starts
  • When I build lighting again it stops, also when play testing it’s not visible
  • When I play-test a map without build lighting it is also not visible

Some screenshots:
picture 1
picture 2
picture 3

My system:
Intel Core i7-3820 3.6GHz - socket 2011
EVGA GeForce GT610 1GB PCI-E
MSI X79A-GD45 (8D) - socket 2011- ATX
Windows 7, 64 bit

Kind regards, & thanks!

2

Hi TimMoodWorks,

Does this occur in a blank project with no additional content? Does this occur in 4.2.1 for you?

3

Hi ,

I just checked and it does also occur in de 4.2.1 version altough I cannot remember it occuring 3 weeks ago (before holiday), today was the first time again I started the Unreal Engine & downloaded the newest version. So far as I know nothing has changed to my system.

If I open an old testproject in the 4.2.1 it is far less though / it seems more stable. In 4.4.0 it is occuring almost full-time, even if I don’t move. Different field of black grid’s are flickering in and out.

4

Does this happen on a blank project with no additional content? For instance, if you open up a new project>First Person Blueprint project does this still occur?

5

Hi ,

  1. When I open the First Person Blueprint I can move around in the viewport & playtest without the flickering
  2. When I add a box from the geometry layout it starts flickering

*I noticed that the flickering seems to relate to the reflection of light, I added a video of me opening the first person blueprint, adding the box, and getting the flickering:

recording

6

No I have not yet updated my drivers in the last months, I can give this a try!

7

Hi Tim_MoodWorks,

Have you recently updated your video card drivers or are you on any beta video card drivers currently?

8

I updated all my drivers via the AMD Catalyst control center, when I now open the file from the video the flickering is gone! I hope is is fixed, it does seem so!

Thanks for the assistance!

9

Hi Tim_MoodWorks,

I am happy to hear that this fixed your graphics glitch. I will mark this question as answered for tracking purposes. If you experience this error again, please comment here and let me know. Have a great day!