After cloning, there may be missing potential matches on the dashboard potential matches facet. More specifically you can see potential matches are displayed when an entity is open in Reltio UI, but not shown in the dashboard facet.
There are potential matches when an entity is open in Reltio UI, but no potential matches in the dashboard facet.
Run the potential matches rebuild task. This can be run in a single thread only.
For more details, see: https://docs.reltio.com/tasksapi/PotentialMatchesReindexTask.html