TypeError: Argument 1 ('node') to Node.appendChild must be an instance of Node

[dheckl]

Describe the bug
When trying to open the Amendments of a motion, no amendments are listed and the console shows the error "TypeError: Argument 1 ('node') to Node.appendChild must be an instance of Node". It was working before, but now it is not working any more. Is corrupt data maybe the reason? A database check did not find any corrupt data.

How to Reproduce
Steps to reproduce the behavior:

1. Go to 'Motions'
2. Click on any 'Motion'
3. Scroll down to 'x Amendments' and click on it
4. No Amendments displayed and error in console "TypeError: Argument 1 ('node') to Node.appendChild must be an instance of Node".

Expected behavior
All amendments are displayed

System information

• OpenSlides version: 4.2.24

Additional context
The system was updated from 4.2.2 to 4.2.24 after the error occurred as a first try to fix it, all migrations were successful but the issue still exists.

Screenshots

[dheckl]

It turned out that HTML contained paragraphs with style="text-align: justify" formatting. After removing these, the error disappeared.