AsyncGPUReadback.RequestIntoNativeArray - What am I doing wrong?

Hi,

I'm currently using AsyncGPUReadback.RequestIntoNativeArray(ref array, ...) to asynchronously read the data of a RenderTexture I'm blitting to every few frames. I'm using a NativeArray in an effort to reduce recurring garbage allocations. So far so good. I got everything to work like I want it to, but it seems like I'm still doing something wrong with the NativeArray I'm passing to the method.

I'm allocating a NativeArray with Allocator.Persistent, pass that to RequestIntoNativeArray() and use that NativeArray to do some other stuff after the AsyncGPUReadbackRequest has completed. When quitting the game I try to clean up after myself and call Dispose() on the persistent array.

Sometime the following problem occurs:

When I stop my application in the Editor the following exception is thrown:
"InvalidOpertationException: [NativeArray...] has been set to undisposable and cannot be deallocated"

And when I hit Play again after that:
"A Native Collection has not been disposed, resulting in a memory leak. Allocated from: ..."

Both exceptions point to the array I mentioned above. This seems somewhat contradictory to me.
Does anyone have a clue as to what the issue is, if there is any?

 

@jhelbig I've been experiencing similar issues, afaik it's a known issue with a bug report linked here: https://forum.unity.com/threads/asy...lidoperationexception-on-nativearray.1011955/