I can't catch it again, how do I fix it?
Could you please describe it more specifically? What does it in catch it again refer to? Are you trying to grab another object after destroying the previous object in grip?
The previous object is destroyed and when I try to grab another object, the grab doesn't work.
Are you using Unity XR logic to implement it? Our SDK provides basic XR features that follow the XR specification established by Unity. Grip is one of those features. The following links are XR Interaction Toolkit demo and the document about it. For your reference.