V6.3 - cannot set default index & constant 400 errors

[violetaria]

I'm using Kibana 6.3 running in Kubernetes and I keep getting errors about the defaultIndex

If I add more than 1 index, the whole UI stops functioning and complains about having a default index set.

Every page load throws this error in the dev tools network tab:
{"message":"failed to parse [config.defaultIndex]: [mapper_parsing_exception] failed to parse [config.defaultIndex]","statusCode":400,"error":"Bad Request"}

I cannot set a default Index via the UI, I set it and it ignores the setting/throws a 400 error in the UI (Config: Request failed with status code: 400)

This is my first experience with Kibana and I'm not sure how to fix this, any help would be greatly appreciated.

[ppisljar (Peter Pisljar)]

looks like something went wrong with the instalation.

could you copy paste the request and response chrome gets when setting the default index (from chrome developer tools)

[violetaria]

I think you are right!

I found another person on here that mentioned deleting the .kibana index from elastic search. I tried that and it seemed to fix the issue. I'm not the person who originally got the instances up so not sure what went wrong, but I am good to go now.