Hi, since we upgraded our cluster from 4.7 to 4.10.4 we are experiencing issues. When shutting down the service (with a confirmed graceful shutdown in the logs), the index is dropped, with only one lonely `segments.gen` file left for each shard and all other files being deleted.
There is no message in the logs, other than graceful shutdown. Did anybody have a similar issues and has some advice? Cheers, Oliver
