Running this operator and and closing Blender gives this: Error: Not freed memory blocks: 2 ImBuf_struct len: 2480 0x69ba4f8 imb_addrectImBuf len: 1048576 0x6ccc2d8 Fixed with added call to IMB_freeImBuf in BKE_image_add_from_imbuf. Could be fixed in the operator instead, but I think the BKE function is the correct place since the comment says it should take ownership of the ImBuf. Reviewers: sergey Reviewed By: sergey Differential Revision: https://developer.blender.org/D1084