Today I accedentily connected Kibana 6.7 to Elasticsearch running 6.5 but after this normal users are not able to log in anymore from the main kibana 6.5 instance. The error is: Oops, error. Try again.
The admin account has no problems logged in.
I checked and found there now are to kibana indeces, .kibana_1 and .kibana_2. Could this be the problem and if so, how can I correct this?