addItem 报错 Cannot read properties of undefined (reading 'getModel') #4487

Describe the bug

我是自定义的节点，报错 。但是有时候可以正常运行，请问这个是什么原因呢 TypeError: Cannot read properties of undefined (reading 'getModel') at AbstractGraph2.addItem (graph.js:1114:51) at index.vue:905:10 at Array.forEach (<anonymous>) at addNodeAndEdgeToGraph (index.vue:903:5) at getGraphDataINIT (index.vue:1047:11) at callWithErrorHandling (runtime-core.esm-bundler.js:155:22) at callWithAsyncErrorHandling (runtime-core.esm-bundler.js:164:21) at emit$1 (runtime-core.esm-bundler.js:718:9) at runtime-core.esm-bundler.js:7232:53

<img width="715" alt="image" src="https://user-images.githubusercontent.com/31729631/237051552-57cc7ee1-ede8-4b29-b188-470d301be905.png"> <img width="493" alt="image" src="https://user-images.githubusercontent.com/31729631/237051703-ed3d2081-24cf-4ba4-a398-3ee04601ac95.png">

Your Example Website or App

无

Steps to Reproduce the Bug or Issue

无

Expected behavior

节点可以成功添加

Screenshots or Videos

无

Platform

• OS: [e.g. macOS, Windows, Linux]
• Browser: [e.g. Chrome, Safari, Firefox]
• Version: [e.g. 91.1]

Additional context

无