"Cannot pop() an empty List" is always a sign of colliding instances of the same rule running at the same time. It can't happen between two different rules.
Turn on full rule logging and you can see the immediate cause.
Download the Hubitat app
"Cannot pop() an empty List" is always a sign of colliding instances of the same rule running at the same time. It can't happen between two different rules.
Turn on full rule logging and you can see the immediate cause.
Download the Hubitat app