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What does the Core Animation 506 rendering error mean?

I have this error in the device console log, but I can not find anything. I do not know what is the cause of this error, where you can find any comments or something else:

Tue Dec 14 09:46:05 unknown com.apple.SpringBoard[46] <Notice>: CoreAnimation: rendering error 506 Tue Dec 14 09:46:05 unknown com.apple.SpringBoard[46] <Notice>: CoreAnimation: rendering error 506 Tue Dec 14 09:46:05 unknown com.apple.SpringBoard[46] <Notice>: CoreAnimation: rendering error 506

This error occurs randomly (and this is very rare) in my iPad application, basically it makes the whole screen black (except for buttons with images and some shortcuts). When I exit the application, I have an empty space (covered in black) on my virtual keyboard (one way or another, it is obtained from the application in iOS).

Here is a video of this in action: http://www.youtube.com/watch?v=L2YilAVXqAo

What can cause this and how can I avoid this error?

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2 answers

As stated, this is a memory issue.

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Isn't that an OpenGL rendering error ? If it will be GL_INVALID_FRAMEBUFFER_OPERATION. If you are not making any OpenGL calls yourself, you must indicate an error with Apple.

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Source: https://habr.com/ru/post/1333032/

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