Reset, Reinitialize Enterprise Search

I use an on premise deployment of elastic search 7.10.2. Recently I have migrated all my indices to another onpremise cluster and everything is working fine so far. Cluster State green, all indices green. But my enterprise search installation is not working anymore. I might not have copied over some necessary indices.

This is a test cluster - so is there a way how I can delete the configuration data related to enterprise search and completely reinitialize enterprise search from scratch?

Welcome.

Have a look at indices starting with .ent.
You can probably remove them.