4.17.2 iOS build Crash from splash when r.mobilemsaa!=1

Am testing a VR app on an iPhone6 and it only runs well when i turn off any type of antialiasing. If i set Mobile MSAA on Project Preferences = Crash, if i set TemporalAA on Project Preferences = Crash, if i turn off all AA methods on project preferences and set r.mobileMSAA=2 Crash, =4 crash.
Did test on all those settings with r.MobileScaleFactor from 0 to 3 and Crash.

Only if i set r.mobileMSAA=0 or 1 runs the app no problem but VERY jittery and un-aliased on both options.

This app runs on an idol3 5.5, Moto G, Samgung S6, and S7 flawlessly with r.mobileMSAA set to 1,2,3 and 4.

This has been a very long test as Unreal will remote build EVERYTIME even when i only make a small change in the DeviceProfile.ini and Launching is not an option because of a “Connect: Couldn’t Start AFC service DeploymentServer: Error: Call to AMDeviceCopyValue failed” error that apparently am the only one experiencing.

Any help would be great.

Attached an Xcode Log.

link text

Solved, you need to turn on Mobile HDR for the iPhone no to crash from splash if you use r.MobileMSAA 2 or 4.