Fatal Python error: deallocating NotImplemented

[hhoeflin]

I am trying to read a large Aperio Imagescope image (BigTIFF format). I can read the image without issues and it is very fast. However, after I am finished, I am running into an error that

 Fatal Python error: deallocating NotImplemented

Has this issue ever come up before? Any way to avoid it? Thanks

[pglock]

Could you post a minimal code snippet, to reproduce this error?