How do I fix a parent cycle error?

如何修复父级循环错误（SG 素材组）

Last updated: 2026-10-21

A parent cycle error means a part's Parent ID chain loops back to itself in the SG panel. Break the loop by reassigning one Parent ID so the material group stays a tree.

父级循环错误表示 SG 面板中某个部件的 Parent ID 链回到了自身。重新指定一个 Parent ID 打断循环，让素材组保持树状结构。

How to do it in 3SAX V3

在 3SAX V3 中怎么做

1. Open the SG Material Group panel and check the red input hints next to Part ID and Parent ID.

1. 打开 SG 素材组面板，查看 Part ID 与 Parent ID 旁的红色输入提示。

2. Run whole-project validation and click the cycle error in the list to jump to the part.

2. 执行整项目校验，点击错误列表中的循环错误，跳转到该部件。

3. Trace the chain: if A's parent is B and B's parent is A, pick one part.

3. 追查链条：若 A 的父级是 B、B 的父级是 A，选定其中一个部件。

4. Set that part's Parent ID to a root part or leave it empty, so no part points back into the loop.

4. 把该部件的 Parent ID 设为根部件或留空，确保没有部件指回循环。

5. Confirm every hint turns green, then re-check actions in AG that target those parts.

5. 确认所有提示变绿，再检查 AG 中指向这些部件的动作。

What you CAN and CANNOT do

能做与不能做

CAN: fix Parent ID, keep a clean parent-child tree, preview it in CANVAS.
CANNOT: leave a loop and render. The code is rejected, parts fly apart in CANVAS, and MP4 render fails.
Actions in AG that bind a cyclic part will not play correctly until the loop is removed.

能做：修改 Parent ID，保持清晰的父子树，在 CANVAS 预览。
不能做：保留循环并渲染。代码会被拒绝，部件在 CANVAS 中飞散，MP4 渲染失败。
AG 中绑定循环部件的动作，在打断循环前无法正确播放。

Open the 3SAX V3 creator tool and fix your SG parent chain now.

现在打开 3SAX V3 创作工具，修复你的 SG 父级链。