[Bug] Snap and merge not working as intended

[SuvrangshuBarua]

Summary

I have a folded cushion mesh, and I want to roll it during the simulation using an extruded circle which works as a cylinder. I animated the roller's rolling motion and attached it to the side of the folded cushion using Snap and Merge. The intended behavior is for the roller to move forward and roll the cushion as the simulation progresses. However, in the current simulation, the roller only rolls in place while the cushion remains stationary and does not roll up as expected. Here is the drive link to the file.

Steps to Reproduce

1. Set Object A -> Circle, Object B -> PRC
2. Re calculate snap and merge
3. Transfer and run the simulation

Expected Behavior

The intended behavior is the cushion is being rolled while the roller progress on the simulation

Actual Behavior

In reality the roller rolls itself and the cushion stays as it is.

Environment

The latest solver is showing self-intersection on the folded cushion so I used the former version.
OS: Windows 11
GPU: RTX 4070 Laptop GPU

Contribution Agreement

• I confirm that any code, patches, scripts, attachments, or other copyrightable material I include in this issue may be used, reproduced, modified, and distributed by this project under the Apache License 2.0 or as otherwise described in CONTRIBUTING.md.
• This is a bug report from the community (please provide a reference below).

Community Reference

No response

[ryichando]

Thanks! I will look into this. Marked queued.

[ryichando]

Hi! The uploaded mesh has too many intersections. Since I've made a lot of changes and drastic architecture changes, I can't help with this.

[ryichando]

I've tried myself with a similar setup and it seems working fine:

roller-drag-25.mp4

Please try this

problem_my_ver.zip

[SuvrangshuBarua]

Hi, thank you for looking into this.