TypeError: 'get' on proxy: property '_layoutEngine' is a read-only and non-configurable data property on the proxy target but the proxy did not return its actual value (expected '#<LayoutEngine2>' but got '#<LayoutEngine2>')

[SleepyAsh0191]

Uncaught (in promise) TypeError: 'get' on proxy: property '_layoutEngine' is a read-only and non-configurable data property on the proxy target but the proxy did not return its actual value (expected '#<LayoutEngine2>' but got '#<LayoutEngine2>')
    at Proxy.layout (index.js:11603:1)
    at Proxy.layoutRun (embedded.js:32:27)
    at Proxy.layoutCached (embedded.js:56:22)
    at Proxy.layout (embedded.js:81:26)
    at Proxy.widthOfString (embedded.js:118:24)
    at widthOfString (textTools.js:370:1)
    at TextTools.widthOfString (textTools.js:118:1)
    at LayoutBuilder.buildNextLine (layoutBuilder.js:804:1)
    at LayoutBuilder.processLeaf (layoutBuilder.js:714:1)
    at layoutBuilder.js:403:1

when i'm using Simsun.ttf for unicode text

[atpznn]

i have same issue
anyone has solution?
I'm guessing several reasons. Using slash ,
Number of characters used
But I still can't find it.