With the introduction of Server roles in SharePoint 2016, the Legeris Service Instance will appear with a 'fix' option. If you run the fix the fix, all that will happen is that SharePoint will un-provision the service instance.
The Legeris installation script will update the Health Analyser job that will attempt to fix service instances and disable the option to fix it automatically.
In the event you do run the fix and the service becomes unprovisioned it is necessary to re-provision the Legeris Service Instance using PowerShell.
The development team continue to investigate this issue.