Deleting particle system velocity limit throws error in console. #16591
Description
Deleting velocity limit gradients while system is running throws an error.
Repro
- https://playground.babylonjs.com/#2AR0Z7
- select particle system and remove velocity limit by clicking on the trash icon
- open console
- Expected result: There should be no error thrown like other gradient controls
- Current result: Gradient can't be found in calculating particle velocity so an error is thrown.
Screenshots
