Docker save complains about "file integrity checksum failed for "core""

General
1

Issue Type : Error
OS Version: CentOS 7 (64bit)
App Version: 1.11.2, build b9f10c9

Steps to reproduce:

  1. build an image : docker build -t myimage:s1 .
  2. save the image for transport: docker save -o myoutput.tar myimage:s1
    And during the save operation the error cames up and no file is created:
    Error response from daemon: file integrity checksum failed for “core”

Any idea what is going wrong?
This behaviour came up one morning, up to this point everything worked fine and now I am not longer able to save my docker images.

Regards
Edmund