It seems like i was unable to login from your backend, this is what i hitting now :

Warning

Benutzername und Passwort falsch oder das Benutzerkonto existiert noch nicht!

Is it possible put your script code into one file then attach into your next reply? so i can test on my locally.

you put in the wrong login data.
i have made no changes.

The code is:

<daa-wgt data-itg="1f2f8e2b6bc1d8a0b20a373b9fc6fc92"></daa-wgt><script async src="https://hub.daa.net/js/hub.js"></script>

Yes, I did tried again to login from your backend but I still hitting the same login error.

By the way, i did tried in my locally, it seems like Joomla article + JCE editor also remove these data attribute when you toggle back, you can check my video here : http://take.ms/bN7O0

May i know if you put this code into Joomla article is it work fine?

i have an answer from supoort of JCE Editor.
There must be set a entry for allowed tags

Thanks for updating us on this Daniel. By the way, would it be possible for you to share the solution for JCE here so that in the future if other customers are searching for similar problems, they would be able to also find a work around?

see screen for the special entry

Thanks for sharing Daniel.

As a gentle reminder, kindly start a new thread if you have any other issue in the future so it will be easier for us to manage your inquiry. I will lock and mark this thread as resolved.