This indexing error is popping up in logstash events, apparently due to authevents channel logging status as two different types:
"reason"=>"object mapping for [status] tried to parse field [status] as object, but found a concrete value"}
And indeed inspecting logs on mwlog for authevents channel, some logs are in the form of
2020-12-08 13:59:34 [X8@GxgpAMNMAAi4S4CIAAAEG] mw1369 enwiki 1.36.0-wmf.20 authevents INFO: Login attempt {"event":"login","successful":false,"status":"login-throttled"}
While others
2020-12-08 13:59:35 [X8@GwwpAIIEAAPBa9lcAAAAF] mw1299 loginwiki 1.36.0-wmf.20 authevents INFO: Autocreation attempt {"event":"autocreate","status":{"Status":"<OK, no errors detected, no value set>"}}
Ditto for cases like these:
2020-12-08 14:06:38 [X8@IbQpAEKAAAqgnReEAAABM] mw1399 enwiki 1.36.0-wmf.20 authevents INFO: Account creation attempt {"event":"accountcreation","successful":false,"status":"* $1 * $2"}