Hi,

the Logs show messages about setting Rendering Mode to OpenGL ES 2.0, followed by a tentative to initialize Metal layer, which looks suspicious;

• is your application using pure Unity setup, or are you integrating with native iOS code ?
• is the issue reproducible with the Image Targets sample (or other sample app) for Unity ?
• is the issue seen when using a Stereo camera or mono ?

Hey, thank you for your responce.

- Pure unity (but we're using 3rd party plugins: Mobile Movie Texture, Cardboard SDK), from our side there's no native code at all.

- Image Targets sample works without any issues.

- Simple plain/default ARCamera (mono).

Found source of this issue:

We're using MMT and Cardboard SDK, and they require custom AppController (MMT for registering render plugin, cardboard for on boarding dialog view)

What we've ended up is adding all 3 plugins (Vuforia, MMT, Cardboard) were setted up in one class, and we've missed key part of vuforia setup:

extern "C" void VuforiaSetGraphicsDevice(void* device, int deviceType, int eventType);
...
- (void)shouldAttachRenderDelegate {
UnityRegisterRenderingPlugin(&VuforiaSetGraphicsDevice, &VuforiaRenderEvent); }

So, thank you, issue is resolved.

Glad it's solved.