The team is now working on the WordPress Interactivity API. This unblocks the same UX Frontity framework enabled but directly in WordPress Core, fully compatible with the new Site Editor.
To be able to help you with your issue the proper resources and information should be provided so any member of the community can reproduce the issue and get a better understanding of it.
Eiden3
I read that, that is why I stated that I cannot disclose the url and asked only for further steps to debug, not a solution. I will try to make a minimum viable repo and deploy it somewhere so everyone can see it but that is going to take much time. You can close/delete the topic for now if you like if my topic is not satisfactory.
Eiden4
Hey guys,
for anyone checking this thread:
The issue was actually that I had a package-lock.json in my repository and using npm in my deployment Dockerfile while using yarn otherwise. That means the issue was caused by version conflicts.