machine learning feature controls security "before all" hook

[liza-mae]

✖ fail: "machine learning feature controls security "before all" hook"
│ [snapshot_in_progress_exception] Cannot delete indices that are being snapshotted: [[.kibana_1/7P7B9Z1ZQROTprlI63105Q]]. Try again after snapshot finishes or cancel the currently running snapshot.
│ :: {"path":"/.kibana_2%2C.kibana%2C.kibana_1","query":{},"statusCode":400,"response":"{"error":{"root_cause":[{"type":"snapshot_in_progress_exception","reason":"Cannot delete indices that are being snapshotted: [[.kibana_1/7P7B9Z1ZQROTprlI63105Q]]. Try again after snapshot finishes or cancel the currently running snapshot."}],"type":"snapshot_in_progress_exception","reason":"Cannot delete indices that are being snapshotted: [[.kibana_1/7P7B9Z1ZQROTprlI63105Q]]. Try again after snapshot finishes or cancel the currently running snapshot."},"status":400}"}
│ at respond (/home/liza/TESTING/kbn-cloud-testing/node_modules/elasticsearch/src/lib/transport.js:315:15)
│ at checkRespForFailure (/home/liza/TESTING/kbn-cloud-testing/node_modules/elasticsearch/src/lib/transport.js:274:7)
│ at HttpConnector. (/home/liza/TESTING/kbn-cloud-testing/node_modules/elasticsearch/src/lib/connectors/http.js:166:7)
│ at IncomingMessage.wrapper (/home/liza/TESTING/kbn-cloud-testing/node_modules/elasticsearch/node_modules/lodash/lodash.js:4935:19)
│ at endReadableNT (_stream_readable.js:1103:12)
│ at process._tickCallback (internal/process/next_tick.js:63:19)
│

Version: 7.2

[elasticmachine]

Pinging @elastic/ml-ui

[elasticmachine]

Pinging @elastic/kibana-security

[elasticmachine]

Pinging @elastic/kibana-test-triage

[LeeDr]

This was fixed at one point by this PR #18624

(not related to Machine Learning, but Cloud snapshotting while we're esArchiving)

[liza-mae]

Failures are related to #39689

[pheyos]

Welcome screen issues have been solved as part of #39689