Simplesearch: problem if snippet inside content

Hi all!

has anybody experienced issues with simplesearch when a snippet is inside the content of a searched page?

I have a site with contentBlock, where I call getResources inside a contentblock field.
I need to use the placeholder "content" instead of "extract" in order to clean it.

When that page (or other like that) is found by simplesearch I have a blank screen, no error anywhere.
If I remove the placeholder "content" everything is fine.
I tried adding a modifier to clean tags and modx code inside, no success..

thanks for your tips!