I am getting “read timed out” when doing searches and email alerts are failing to send. In the log, I get the following message corresponding with the time of the UI error:
Index not found for query: weeping-angel_0. Try recalculating your index ranges.
I have recalculated the index ranges for all index sets several times and rotated active write indices with no success. I also don’t have any index sets with the prefix “weeping-angel”. What could be the issue here? Running Graylog 4.0.1 with ES 6.8.0.