Unresponsive when adding swimlane

Question

I have a BPMN diagram created from a template and using assisted layout for the swimlanes. The diagram is medium in size, currently it has 6 lanes and maybe about 80 shapes within the swimlanes. I have an issue when trying to add an additional lane - using either:

the “Lanes” variable in the attributes panel for the “Swim lane” shape (increased from 6 → 7); or
using the right-click context menu (Insert Lane Above/Below)

In either case the browser tab becomes unresponsive and the browser shows a warning asking whether to wait or exit the tab (true in both Chrome & Arc). In most cases when exiting the tab and re-opening the diagram the new swimlane has not been added - but occasionally it does then show up.

This occurs on a well powered Macbook M1 Pro.

Humas1985 · Accepted Answer

Hi ​@sp4It sounds like the issue is related to the complexity of the diagram performance can degrade when working with larger BPMN diagrams, especially with Assisted Layout enabledKindly try to Turn off Assisted Layout.This will stop the auto-repositioning of elements and dramatically improve responsiveness.You can try delegating this by trying in a different browser / incognito.Else, try duplicating the document and adding the lane before populating it with shapes, Once the swim lane structure is set, paste your shapes back into the diagramHope this helps - Happy to help further!!Thank you very much and have a great one!Warm regards

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