TREX index not found but queues available

Hello Guru's,

We have a small migration - KM TREX error.

I am not sure where to post it but I think it is more a portal configuration error

We migrated from TREX v6.0 to v6.1. After migration all pyhton tests went well.

When searching in EP we got the message "No search index could be found".

In the Portal via the TREX index Administration we cannot see any indexes.

When trying to create indexes with the same ID we receive an error: index allready exists.

Most astonishing is the fact that when going to the TREX Monitor we can see the queues of the migrated indexes!

When creating new indexes via the Portal interface they do appear as wanted in the index administration.

Can anyone tell us where the links to the indexes are defined in Enterprise Portal EP6 SP9?

Many many many thanks