roblox sharp edges

When to Load

Load before shipping or reviewing code that handles persistence, remotes, purchases, lifecycle cleanup, or high-volume instances.

Risk	Failure mode	First check
Shared player data	two servers overwrite one profile	session ownership and release path
Remote handlers	client manufactures a reward	validate against server state
Receipts	a purchase is acknowledged without a grant	idempotent grant before acknowledgement
Connections	old players retain callbacks	disconnect on removal or destroy the owner
Shutdown	saves exceed the close window	bounded, observable flush
Instances	mobile frame time collapses	profile and stream before adding detail
Yields	startup hangs or deadlocks	explicit lifecycle phases and timeouts
Tables	length or mutation assumptions break	use explicit counts and constructors
Async work	abandoned tasks keep running	cancellation or an owner lifetime