Hello AaronFindlay,
Thanks for reaching Microsoft Community. We're sorry to learn about this issue on your docks. Please do know that this is not the experience we want you to have.
In this case, please see Troubleshoot connecting Surface to a second screen (microsoft.com) and Troubleshoot Surface Dock and docking stations for more troubleshooting guide and workarounds.
If issue still persists, and since this issue happens to multiple devices, we suggest to raise and open a ticket with our Support for business - Microsoft Support.
Best regards,
StevenK