Export render target on android does not create a valid png

Development Platform & Builds Mobile
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1

Hello,

Exporting a render target on android creates a png file that appears to be not valid. The exact same blueprint work fine on windows.

Any ideas?

The last attachment is the png that gets exported…

287936-1.jpg
287936-1.jpg1192×523 111 KB

287937-2.jpg
287937-2.jpg622×641 49.2 KB

287938-3.jpg
287938-3.jpg593×846 68.6 KB

287939-pic-1.png
287939-pic-1.png720×720 492 KB

2

The problem with Export Render Target not being able to write on mobile seems to come from the ExportRenderTarget2DAsPNG function inside Source\Runtime\Engine\Private\ImageUtils.cpp.

The function above is successfully called even on mobile from the ExportRenderTarget function inside Source\Runtime\Engine\Private\KismetRenderingLibrary.cpp

Still have no idea why it won’t work though

3

After I submitted it as a bug to Unreal, they were able to reproduce the issue. So it is a bug…

Here is a link to the issue tracker