I apologize for the late reply and thank you for helping us find this issue.
We fixed it internally and it will be included in the next update, which will be released soon.
If you need to test that the issue is actually resolved for you, you can download a preview version that includes the fix from here.
I have a problem with the examples in Android.
The problem happens when i want back to the menu scene from an AR scene, the app crash.
How i can solve this? i need do this in my app also.