The ADR monitoring of FMGEC is a continuous process and rather complicated...
simplified it needs at least 2 valid sources for the command side, OWN ADR and ADR 3, with OWN ADR as default.
But the monitoring side takes all 3 ADRs (if valid) in account.
Don't know the exact influence of F/O switching to ADR 3 on monitoring logic.
Anyway:
@02:10:40 CAS (#1) seems to be in same range as ISIS trace (~ADR3).