dear community, 

    I freeze the model when I have a satisfaction result of simulation, but every time I reopen the project, the zipper (everything loaded as obj as trim because I need to have the UVs)  changes direction and the tape need to be re-simulated , the hardware of the bag (d-rings, snap hock) change little their placement as well. How could I resolve this problem? its bettre when I freeze everything before saving but something still change next time 

    Thank you 🙏