[Plugin: HTML Purified] Can't get it to work on 3.4.1

Hi,

I just installed html purified and have it set to purifiers, filter content from admins.

I can happily post xss script attacks that pass.

Where do I start to look to find out what’s wrong. I have added: error_log( print_r( $data ) );
to filter_post in the main plugin file, but that doesn’t show much coming trough except for some empty arrays.

https://www.ads-software.com/extend/plugins/html-purified/