ARCore can't resume ARsession.

Development Platform & Builds XR Development
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3

Try use this scheme.

image

In code when you call stopArSession
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But, i think, if you add delay, it’s working, more correctly.
(I remembered that I found some strange bug with the first few turns on the application, so I did not turn off the Ar session the first 3 times the application was turned on on the device, then everything works correctly)

And about problem when collapsed application, you can try to do something thing with
…\Engine\Plugins\Runtime\AR\Google\GoogleARCore\Source\GoogleARCoreBase\Private\GoogleARCoreXRTrackingSystem.cpp

and

…\Engine\Plugins\Runtime\AR\Google\GoogleARCore\Source\GoogleARCoreBase\Java

And the files lying in these directories. I didn’t have time to figure out this problem, but I think the problem is the same as described here

https://stackoverflow.com/questions/46401101/arcore-session-is-not-restarting