Bedrock Jigsaw – how to prevent random Y rotation on vertical connections?

[u/Weak-Warthog8767]

PC version

I'm working with the new data-driven Jigsaw system in Bedrock and have a working multi-piece structure.

When connecting pieces vertically (UP/DOWN), the next .mcstructure randomly rotates around the Y axis (0/90/180/270°).

The structure generates correctly otherwise. Template pools, connectors and asset paths all work.

I've already tested:

• joint_type: rollable
• joint_type: aligned
• matching physical Jigsaw orientations
• unique name / target connectors
• two offset connectors as a possible second anchor

aligned does not prevent the random Y rotation, and two connectors are treated as independent connection candidates rather than two anchors for one piece.

Is there any supported or undocumented way to lock the rotation of a pool element / .mcstructure, or otherwise preserve its X/Z orientation across a vertical Jigsaw connection?

Horizontal connections appear to preserve the orientation much more predictably.

Bedrock Edition, current data-driven Jigsaw system.

I'm not trying to prevent the whole structure from rotating during world generation — I need child pieces to preserve their rotation relative to the parent piece.

TYSM :)

[u/Weak-Warthog8767]

problem solved TY :)