iX[2.0.4] - showToast prod build error

Hello iX Team,

We are using iX[2.0.4] in React. We encounter an error in the Toast component as below. All of the packages we build with “npm run build” have a similar situation, including the code on the ix webpage ( https://ix.siemens.io/docs/controls/toast).

Someone can suggest any solution?

Thanks in advance.

Error:

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