Unreal Engine Issues

Visualization View Mode Shader Complexity when in Mobile Preview Vulkan with MMV will crash the editor

ARKit - Handheld AR Template Experiences Periodic Hitches when Quick Launched

Reproduced 3/3 times. Regression testing in progress. Issue was reproduced on both Windows and MacOS launching onto iOS. Issue does not reproduce when packaging and installing an .ipa app. ...

Poor Vulkan RHIThread performance in Development builds on some Android

Community-attempted workaround received in [Link Removed] Correct fix submitted to 5.6 FNMain in [Link Removed] which needs integrating into 5.5.3. ...

Validity of a workaround for an issue with MobileRenderer where RecieveShadow can't be rendered properly

Dynamic instancing is likely causing an issue where meshes that need shadows are getting combined with meshes that do not need shadows causing missing shadows. Tests were done with CSMs. Reproducti ...

Safezones on Android not set properly when orientation changes

Looks like the resize that does the safe zone update is done before the orientation is updated.  I suggested swapping the order to licensee in the UDN ticket and it worked for him.  This should be t ...

Shadows get attenuated by Volumetric Fog excessively on mobile

Mobile Depth of Field blurry eveywhere

user reports I investigated the problem throught the frame capture tools and found that on a real device (iPhone 15 Pro in my case), the depth texture for the SunMask pass is not set (a dummy black ...

Unable to Use Console Command with bShowLaunchImage=False

Post Process Material Chain Graph does not work with the mobile renderer

Shader compilation errors when packaging for iOS after disabling force full precision

User report: I want to run iOS shaders with half precision floats as I do on Android. If I disable Force 32 bits Floating Point Precision, there are unfortunately a bunch of shader compilation error ...