Random and huge spikes in joint reaction analyze output

[mrrezaie]

Hi, I'm using JointReaction Analyze tool in which CoordinateActuators are the only actuators that produce joint moment to get the intersegmental forces. It works very well on the official OpenSim 4.5 version and the output curves are smooth and reasonable. But in the latest artifact (ae33fce), I'm getting random and very very very huge spikes in the curves. Perhaps something about actuators or other components has been changed since then.

Expected result

(Official OpenSim 4.5)

Actual result

(latest artifact)

Steps to reproduce

Here I created a test case for you to reproduce (just open the model, load the JRA.xml file in the Analyze tool and run it). Desktop.zip

Environment and GUI version

Windows 10, OpenSim-4.6-2024-04-09-ae33fce