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Official Unity ARKit support issue with iOS 16

Discussion in 'AR' started by nickrapp, Sep 10, 2022.

  1. nickrapp


    Unity Technologies

    Oct 5, 2015
    As part of validating Unity against the upcoming iOS 16 release, we have discovered a timing issue in Unity's implementation of ARKit. The issue causes camera frames to arrive out of order, leading to an unstable camera feed. This issue affects all Unity titles using ARKit. We have a fix, which will be available in Unity ARKit package versions 4.1.11, 4.2.5 and 5.0.1, as soon as they pass QA validation. Affected developers will need to update to a fixed version and resubmit your applications.

    We know this is an inconvenience, and a possible impact to your business, as many of you have applications that will break when iOS 16 is launched next week. While issues like this are not uncommon with large OS updates like this, we should have identified the issue sooner, and reacted faster. We can do better and will be evaluating steps we can take to ensure this doesn't happen again in the future. In the mean time, we are working with Apple to help you get titles updated and through certification as quickly as possible.
    Last edited: Sep 10, 2022
    newguy123 and KyryloKuzyk like this.
  2. Adam_R_


    Apr 23, 2019
    I first submitted a bug for this with iOS 16 Beta 1. Back in June!

    I had hoped this would have already been on your radar as it was an obvious issue when running even arfoundations samples repo on iOS 16. Why did your own QA/Testing not pick this issue up? Do you have any processes around testing/validating new versions of iOS/Android?

    I was also hoping that my ticket might be picked up a bit faster as it was a major issue with an upcoming system release. Is there a way to get tickets expedited or mark them critical?
    babinowich likes this.
  3. yoh-mizutani


    Sep 5, 2018
    In my project, upgrading the ARF version did not solve the problem.
    After isolating the problem, I found that the problem occurs when using ARCoreExtensions and using the arcore geospatial API.
    I reported it on the ARCoreExtensions side, but I thought it might be related to this issue reported on ARF, so I am reporting it here as well.

    Below is the Issue to ARCoreExtensions.
  4. kittphi


    Feb 17, 2019
    Just updated to iOS version 16.3.1. Getting Black Screen in the background. :(
  5. andyb-unity


    Unity Technologies

    Feb 10, 2022
    @kittphi some troubleshooting steps:

    * Update to latest patch of AR Foundation and ARKit packages (specifically important that you use 4.2.7 or newer for 4.2, or 5.0.3 or newer for 5.0)
    * Make sure your scene contains AR Session, XR Origin, ARCameraBackground, and ARCameraManager as described here:
    * If using URP, make sure you update to the latest patch of your Unity Engine. (Specifically there is a known black-screen bug in URP on Unity 2022.2.0f4 and below). Also make sure you add the AR Background Renderer feature as described here:

    Hope that helps!