Draw Material to Render Target doesn't work in begin play (standalone)
I discovered that the draw material to render target function (new in 4.13) doesn't properly execute when used in begin play.
Note that it works in editor but not in standalone or packaged game.
The workaround is to add a small delay in begin play but I still think this should be fixed.. there seems to be more inconsistencies in begin play, for example UE-36132.
Thanks for providing the test project as I was able to see what the differences between my own project and yours. I can confirm what you are reporting and have gone ahead and entered a bug report for the issue. You can track the issue following the link below on our new Public Issues Tracker.
Once the issue has been addressed by our engineers, the fix will be added to the release notes for fixed issues within an upcoming full engine or hotfix release.
Let me know if you have further questions or need additional assistance.
answered Sep 28 '16 at 07:05 PM
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