Mac 2,66 GHz Intel Core i5, ios 10.13.5 unreal engine don't work

Good Morning,

i have downloaded today a version UE 4.22, but when i start the program on epic games launcher the program don’t run…any advice?

my system is: iMac (27-inch, Late 2009), 2,66 GHz Intel Core i5, ATI Radeon HD 4850 512 MB, ios 10.13.5

Video card does not support DX11

edit: that was not helpful, sorry. The editor used to support DX10:

But I think that the support was dropped several version ago, not sure. Vaguely remember reading about it in patch notes. Anyway, you’d be robbing yourself of some functionality. 10 year old hardware does not cut it anymore :expressionless: