For two years we have a scheduled daily mass update that has been updating a custom field (for reporting) on our Work Orders. Without any changes on our part, as of 12 Mar 21 when the update runs the WO Revision field gets unset to null. Consequently we are unable to release. When we Edit the WO the Revision field is disabled and unable to be changed. Behaviour can be replaced in 2020.2 & 2021.1. Anyone seen other changes since last Friday?

There was an outage Thursday night. Maybe them fixing that is what broke your process? Have you considered creating a new mass update to see if it has same problem?

Yep. Made a new one. Same result. Logged a support issue. unscheduled my mass iodate for now