Delete History affecting unselected objects

[jfinnie]

Hi, I am currently working on a rig for a character but have noticed when I delete an objects history, the IK spline for the characters spine will also have it's history deleted, despite not being currently selected or having any association with the object having its history deleted.

I wasn’t sure what was causing this at first but eventually realised when creating controls for the character’s neck. I haven’t had this problem affect other parts of the rig, but earlier I did have the mesh randomly detach itself from the rig a few times which at the time I thought could have been an error on my part but now I think it might be related.

The neck controls are not currently affected by the spine controls. I can create a cube, delete its history and the IK spline will be affected.

Does anyone know why this is happening and off any ways to correct this? 

[mcginnc]

Would you be able to provide a file or even a video. I just gave this a quick try and couldn't reproduce the problem. Are you saying the actual curve is deleted?

Thanks, Catherine

[jfinnie]

Here's a video of cube being created, having it's history deleted and the spline IK being affected. Nothing in the rig is deleted itself but the IKspline has it's inputs and outputs cleared as if it had been selected then had it's history deleted. I've also attached the file.

Thanks for replying, it's appreciated.