LG G6

Editing an Area Effect Cloud to have a duration of 2,147,483,647 causes the cloud to never appear and never apply any effects. It doesn't always vanish, it just doesn't do anything at all.

The Duration tag is an Int tag, so i would expect that value to work, but it does not.

After some testing, values up to 2,000,000,000 work, but fail somewhere in between 2 billion and int max.