I took my work laptop for a restage/reimage and this solved the issue. All the docking stations I used in the past are now working as they had been. Monitors and all. So weird but glad it wasn't hardware related. 
USB-C port does not recognize dell docking station. I tried 3 different docking stations and none of the connected monitors or devices were recognized.    USB-C port DOES charge the battery when plugged into the docking stations. 
Latitude 5490 USB-C Port Charges Battery But Does Not Recognize Docking Station