Component layout mismatch

A C# declaration or Rust engine binding disagrees with the Schema DB's canonical size, alignment or field offsets. The binding or module registration is rejected rather than exposing incompatible memory. A failed module replacement leaves the last good code running.

#Common causes

• C# fields differ from schema order or use incompatible types or packing.
• A Rust component lacks #[repr(C)], uses the wrong field offsets, or no longer matches its schema.
• Generated bindings are stale after a schema change.

#Fixes

• Match fields and their order to the schema, use supported blittable types, and regenerate stale bindings.

• Declare Rust engine components with #[repr(C)] and correct the registered size, alignment and field offsets shown in the message.

• Code: ARA0931

• Constant: script::LAYOUT_MISMATCH

• Reported by: ara-script