Guide / Every rule

Element outside the container it belongs to

The check drawing/containment, in the group Drawing.

Error

Why it matters

An element that belongs to a pool, lane or sub-process but is drawn beyond its edge reads as belonging to something else.

How to fix it

Drag the element back inside its container, or enlarge the container.

Where you see it

The Problems tab lists it under Problems, and outlines the element on the canvas. In a terminal, penstock check --only drawing reports it as CONTAINMENT. Auto layout often fixes it for the whole diagram at once.

Rule details

Read more: Diagram check. All rules: Every rule.