Howdy Nx’,
Sorry for the lack of responses and thank you for your update on this post. After reading the information that you have provided, It seems that this error is only occurring for under-powered windows 8.1 machines. It seems that this may be a Windows error and not a UE4 error. Would there be a step by step way that I may be able to test this issue internally? I have attempted a repro on a 8.1 machine that we have and have not been able to see the error.
Thanks!