I'm experiencing a problem on this website: https://dtb.eu in the backend. When I try to change the content in a text field, the text block is getting. So the original text is displayed, plus the same text block with the changes. When I change it again, the block gets copied again for a third time.
Super unsure where the problem is. The site is running on the latest theme version, latest wordpress version and PHP 7.4
All the best