assertion failed

[jorgjorg]

When working with Magick++ I suddenly get

magick/blob.c:3594: SeekBlob: Assertion `image->blob->type != UndefinedStream' failed

I don't know exactly what caused it due to heavy parallellism, but I'm not using SeekBlob directly.
Im using Magick::Blob, Magick::readImages, writeImages,Magick::Image, Pixelpacket.

When calling readImages I'm ignoring Magick::Warning and Magick::WarningCoder exceptions.

[jorgjorg]

and I'm using 6.8.8-10 Q16 under x64.

[jorgjorg]

It's caused by

Magick::Blob mblob_out;
writeImages(imgs->begin(), imgs->end(), &mblob_out);


This did not happen with version 6.8.6-4