Thank you Markess and vialcollet for the responses.
That very well could be the root of the problem. I have a feeling when installing off a USB drive it some times changes any onboard drives to something other than SDA which obviously seems to mess the installation up once the USB is removed.
Does anyone know how to reassign the disk we want as the OS drive to SDA during the installation of OMV 4 off of a USB drive? I did not see an option come up to change that.