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Directional Light and shadow broken in latest versions

Hi, I just found a very weird behavior with the light system that was not present in any previous version, seems like a big bug.

My procedure to check this out is simple: create a blank scene. Add a box to see the shadows of the box.

In UE4.x (till 4.19) you can move, rotate, change the type or add any other directional light. In UE4.21 and 4.22 by rotating or changing the light type (to movable for instance) makes the shadows not to display correctly anymore and the whole light system starts to behave very weirdly.

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in the next picture I I just rotate the light, this is the result I get

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Please let me know if someone else is having this problem. Im using windows 10 on a racerblade with Nvidia 1070 video card.

Thank you

Product Version: UE 4.21
shadow-issues-1.jpg (666.7 kB)
shadowissues2.jpg (755.1 kB)
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asked Feb 28 '19 at 09:48 AM in Bug Reports

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avatar image Jeff A ♦♦ STAFF Mar 01 '19 at 08:03 PM


We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.



avatar image dogrush Mar 02 '19 at 07:42 AM

thank you, I just submitted the case. Hope you can check it out. I haven't been able to find a workaround

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I'm getting weird shadow issues too on 4.21.2. I can get a build to display the shadows, especially the ambient occlusion. but as soon as I touch my mouse to move, the shadows go away. If I package the project I can get see the intended lighting.

I have a Dell laptop with Nvidia M3000. I thought it was something with my system.

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answered Mar 05 '19 at 11:32 PM

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avatar image dogrush Mar 15 '19 at 06:45 AM

Im having same issue with 4.22, i submited a bug already, i advice you to do the same cheers mate!

avatar image dogrush Mar 15 '19 at 06:55 AM

I just submitted a bug report as the problem is not yet solved in version 4.22 preview 5

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