Angular:Uncaught TypeError: Cannot read properties of undefined (reading 'PARAGRAPH')

Using these versions I get the error above:
"@contentful/rich-text-html-renderer": "^16.6.10",
"@contentful/rich-text-types": "^16.8.5",

The error only occurs on production and disappears when optimisation is disabled. I think there is some kind of problem with tree shaking?

Thanks in advance for any hints!