A number of new components have been added to the beta SDK, but there is no documentation on what they are _intended_ to do. As such, it's impossible to tell whether they are behaving correctly - only whether they are behaving in an obviously confusing way.
Whenever this gets released, worlds will begin relying on the current behavior of these components, whatever it happens to be at that time, which makes any further changes extremely difficult. Ensuring that these components do whatever they're intended to do _before_ the final release is critical. Please release documentation - even if it's just a couple paragraphs of summary information - before the end of the beta so this behavior can be tested.