Rule not completing - "and stays" seems to be applying to an action not just the trigger

A strange one. I have a few linked rules for notifications. One of them is for when the fridge door is left open. It should (and does) trigger when the fridge door reports open and stays open for 1 minute. However, the rule should run further actions when the fridge door closes but it does not. From the logs it appears that it is expecting the door to remain closed for 1 minute also which is not the case. Here is the rule:

The log shows the fridge door closing but the remaining actions - 'Set notificationFridgeDoor to null' and 'Run Actions: Notification - Enable' aren't completed as shown in the log below:

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