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Crash when moving Image Tracker Target on and off the camera view with device movement.
Posted Date: 2018-10-10 17:42     Edited Date: 2018-11-07 1:34     Writer: inactive

Please provide your development details as below;
1. SDK Version: 3.5.x
2. Development Environment: Unity-iOS
3. Tracker/Scanner: Iphone 8
4. License Type: Pro-One Time Fee
5. Target Device: Iphone

Unity: 5.6.4f1, xCode - 10 and 9, iOS Versions - 12 and 11.


Description:

I ancounter strange bug on iOS. It is impossible to reproduce for sure but it happens quite occasionaly when pointing phone to image tracker picture on and off the screen. It is also maybe somehow connected with changing orientation of device as if changing orientation then it happens too.

One possible way to reproduce is to point to Image Target and then off (for target to move away from camera view) then on Target and off quite fast and again and again. In a short time app is crashing. I was not able to reproduce it via covering and uncovering image target with hand or moving image around. Only when physically moving phone around. It happens with both Orientation Locked and Unlocked on Device. Orientation in Unity project is fixed To Landscape Left.

I was able to get stacktrace but not crash log in console.

I hope stacktrace would guide You.

Link:      https://imgur.com/a/wck797u

It happened on both 3.0.0 and 3.5.x (I updated to 3.5.x).

I would be very grateful for ideas as it is a huge blocker in development currently.

Posted Date: 2018-10-12 7:09     Edited Date: 2018-10-12 7:09     Writer: kscho

Hello.

Sorry for your inconvenience.

Could you test with the newest version, SDK 4.0.0?

It seems that SDK 4.0.0 solves the issue.

If the problem is solved, please email to us via kscho@maxst.com due to the license.

Thanks.

 

John,

MAXST Support Team

Posted Date: 2018-10-24 14:15     Edited Date: 2018-10-24 14:15     Writer: inactive

Problem persisted in v4.0.

How to reproduce:

  • Create blank Unity Project.
  • Import MaxST 4.0.
  • Put free 4.0 key.
  • Build and Deploy iOS to iPhone X
  • Start and point on image
  • Select Multiple.
  • Drag Phone around to and off picture (or pictures).

Crash is reproducible in Multi mode currently (didn't work alot on normal mode as I need Multi).

Scrrenshots of 2 stacktraces. location orientation crash stacktrace is rare but happens too.

https://imgur.com/a/OuMXAEJ

Posted Date: 2018-10-25 6:32     Edited Date: 2018-10-25 6:32     Writer: kscho

Hello.

Could you send us your target images and 2dmaps files via kscho@maxst.com to inspect the problem ?

Thanks.

 

John,

MAXST Support Team

Posted Date: 2018-10-25 7:48     Edited Date: 2018-10-25 7:48     Writer: inactive

I've sent You maps and images but it happens on tutorial example ImageTracking scene so I assume it is not because of it.

Posted Date: 2018-10-26 20:11     Edited Date: 2018-10-26 20:13     Writer: inactive

I have been having the same issues for weeks, no resolution as of yet. This only seems to cause problems on iOS and it randomly occurs, I've had it crash anywhere from 1 second to 30 seconds of scanning for an image target.

Posted Date: 2018-10-29 2:23     Edited Date: 2018-10-29 2:23     Writer: kscho

Hello.

We've just reproduced the error and are trying to solve the issue intensively.

Sorry for your incovenience.

 

Posted Date: 2018-11-06 3:48     Edited Date: 2018-11-06 3:48     Writer: kscho

Hello.

We've tried to fix it intensively, just fixed the isuue and are preparing the bug fix version.

We'll upload the version, v.4.0.1 until today.

Sorry for your inconvenience.

Thanks a lot for your report.

 

John,

MAXST Support Team

Posted Date: 2018-11-07 1:34     Edited Date: 2018-11-07 1:34     Writer: kscho

Hello.

We updated our SDK to v.4.0.1 which fixed some bugs yesterday.

Please check it.

If you have any problem, feel free to contact us.

Thanks.

 

John,

MAXST Support Team