DGB-SHA256 Pool Block Submission fails - submission failed with: invalid
Not sure if this is relevant to all DGB pools or just DGB-SHA256 but every block submission fails, see image below:

![DGB-BLock-Fails](https://user-images.githubusercontent.com/32314615/89127174-89cd2400-d4a0-11ea-9954-e9d0749d04c5.jpg)
