Users will experience this when there are duplicate VIOShim and VIOUtils services in the custom resource for the deployment. This commonly happens after upgrading.
Resolution
To fix this perform the following steps:
SSH into the VMware Integrated OpenStack Manager as root.
To open the custom resource for the deployment type: osctl edit osdeployment
Go to the end of spec: and right above status:
Look for duplicate entries of VIOUtils: and/or VIOShim: and remove the duplicates.
Save and Exit.
Wait a few minutes for the configuration to complete, and check back within the manager web interface to confirm the fix.