I am facing attached error message while launching Unreal Engine(4.23, 3.22 and 4.19). I am using iMac (27-inch, Mid 2011) computer with below configuration.
Manufacture and model - Apple iMac(27-inch, Mid 2011)
Processor - 3.4Ghz Intel Corei7
Memory - 20GB 1333Mhz DDR3
Graphics - AMD Radeon HD 6970M 1024MB
Which version Unreal engine can be installed on this machine. Kindly advice