Why am i colliding with this union?
Make sure CanCollide property is set to on. If this is off, any object can go right through that part.
EDIT: Just realized that you have CanCollide set to on …
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It’s kind of obvious that you are colliding with the part because CanCollide is on…
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change CollisionFidelity to Precise, turn off CanCollide and CanTouch. Its easy stuff.
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Thanks for providing the tip, but please remember it’s not easy for everyone. 
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