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Editorial Team
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Asked: 2026-05-27T13:50:06+00:00

I have a strange bug in an box2d project(AS3, box2d 2.1a). I have a

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I have a strange bug in an box2d project(AS3, box2d 2.1a).

I have a dynamic rectangle and a small static circle overlapping. I create a revolute joint to those 2 objects(located inside the center of the small circle, point which is also inside the rectangle). If enableMotor is set to false when the joint is created the scene works perfectly, with the rectangle hanging. When I set enableMotor to true the scene freezes.

Did you encountered by any chance the same problem? Do you have any hints where to look to fix the problem?

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1 Answer

  1. Editorial Team

    I had a similar problem a few days ago. In my case the problem seemed to lie with the fixed_rotation value for one of the objects. When i set it to true, and enabled the motor on the revolute joint, flash would hang. I changed the value to false on the offending object and things are running smoothly now. Could be the problem in your case.

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