Area2D child of CharacterBody2D parent constantly throws 'on_body_enter: Body is already being monitored' error on movement

[PleaseJustWork777]

Describe the bug

Moving a CharacterBody2D with child Area2D using move_and_collide() constantly throws the following error from rapier:

E 0:00:00:0664 godot_rapier::bodies::rapier_area::RapierArea::on_body_enter: Body is already being monitored <C++ Source> src\bodies\rapier_area.rs:199 @ godot_rapier::bodies::rapier_area::RapierArea::on_body_enter()

To Reproduce

Steps to reproduce the behavior:

1. Create CharacterBody2D and add CollisionPolygon2D child
2. Create Area2D as child of CharacterBody2d and add identical CollisionPolygon2D child
3. Move CharacterBody2D using move_and_collide()
4. Set Rapier2D as 2D Physics engine in project settings
5. Run project

Expected behavior

Error about Body already being monitored not constantly thrown

Environment:

• OS: Windows 10
• Version Rapier Physics 2D - Parallel SIMD 0.7.20
• Godot Version v4.2.2.stable.official [15073afe3]
• Type 2D - Parallel SIMD

*rapier error repro.zip

Please attach a zip with project where issue occurs.

1. I had to delete the godot-rapier2d from addons to make the zip small enough to upload

[PleaseJustWork777]

I get the same issue with the Cross Platform Determinism build too.

Grateful for any assistance

[Ughuuu]

Will check and let you know. Thanks for reporting it.

[Ughuuu]

Investigated and interestingly enough what happens is it's possible aparently for an object to both enter and exit and event same time and both exit and enter an event same time. In this case they should probably cancel out.

[Ughuuu]

Indeed, canceling the event in this case fixes it! Will put a PR.