Anyone facing blocking issue with 2026.1 version update on Sandbox? The account was not updated on the target date and is cancelled by NS without any reschedule date.

This happens on occasion (even to prod accounts). They will reschedule it eventually. Contact support and/or your account rep if you're particularly concerned or on a time crunch.

Yeah I got the email today.

Upon contacting support it has been identified as a defect with U5 urgency and no reschedule date yet provided. Thanks will reach out to AMO to get it escalated.