Hello Max,
I would not recommend disabling another built-in filters, because they are intended to handle the editor's content in the browsers.
I suggest checking if there are some crucial changes of the email's layout and trying to investigate the source of such issues. After you are sure why such problems might occur, go to
the online demo about the built-in content filters and check if there is a filter that could help you to solve the problem.
Regards,
Ianko
Telerik
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