This incident has been resolved.

Mitigated: We have identified the issue affecting OAuth secret expressions following the 4.20.0 upgrade and published a Known Issue with a workaround. Customers experiencing authentication failures can follow the documented workaround. Known Issue can be found here: https://docs.cribl.io/results/?searchOption=known-issues&tickets=CRIBL-45304

We have published a known issue with a workaround for this issue. See https://docs.cribl.io/results/?searchOption=known-issues&tickets=CRIBL-45304

The issue has been identified and a fix is being implemented.

Update: We are continuing our investigation regarding this issue.

Investigating: We are continuing to investigate an issue that may prevent OAuth secret expressions on Microsoft Sentinel destinations from resolving during authentication following the 4.20.0 upgrade.

We are currently investigating this issue.