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Starting the dryer on an AMS 2 Pro holding two PETG and two PLA spools and picking PLA showed "PLA @ 45°C" for about a minute and then switched to "PETG @ 65°C" for the remaining twelve hours. Bambu never echoes back which filament or temperature a cycle is running, so the badge reads the target cached when the command went out, and that cache had been dropped. Between accepting the command and settling its countdown the firmware publishes one update with the remaining time at zero while the unit is still in its Checking phase -- the reporter's log has 720, then 0, then 719, and four seconds later the same unit's info hex decodes to dry_status 2, Drying. The falling-edge detector read that zero as the cycle ending. Losing the cached target left the badge to guess from the first loaded slot, which was PETG, and its RFID-recommended 65°C. The same false ending fired on_drying_complete, so anyone with smart-plug auto-off-after-drying switched on had power scheduled to cut one minute into a twelve-hour dry; the reporter had it off, which is the only reason this reads as a cosmetic bug. A remaining time of zero now ends a cycle only when the unit is not also reporting an active phase. dry_status comes from the same info hex already parsed a few lines above, so this costs nothing to check. Stopping and Error are deliberately not treated as active -- those should end it -- and a unit that reports no phase at all still ends its cycles, so the gate can only ever suppress on positive evidence that the cycle is live. A suppressed edge leaves the remembered dry_time alone, exactly as the #1462 absent-value skip does, so the push that really ends the cycle still sees a non-zero previous. The fallback guess is tightened to match. On a mixed unit the first tray is evidence of nothing, and naming a temperature the cycle is not using is worse than naming none, so it now answers only when every loaded spool is the same filament and otherwise leaves the badge showing the countdown alone. Both the websocket and REST status builders carried their own copy of that loop; they now share one helper, which also takes the temperature from the first slot that carries an RFID one rather than giving up when slot 1 holds a third-party spool.