So the trigger does fire with the setup you mentioned. I can see entries in the logs and when I expand one of the entries, I see the below info.
This leads me to believe your last statement must be true – the trigger not firing is related to the cluster size.
My next concern is, if I upgrade to a larger tier size, and then hit a certain limit, how will I know the trigger is no longer working, similar to the current situation?
There’s no alert that I can see to inform me of this.
Logs:
[ "{\"updatedFields\":{\"email\":\"bob@bob.com\"},\"removedFields\":[],\"truncatedArrays\":[]}" ]