Did you try using the option inside the Show Post filter > Define Post Display Filter Options > Post Display > Hide post title box.
If that option is not working, then it may be a bad interaction with your theme or other plugin. You should try to deactivate all plugin to see if it makes a difference, and if it does reactivate them one by one to find the culprit.
Now you can use display none to do the same thing, and YES this removes the title as this is the only way to get rid of the title link.
This is why I said that once you have hidden the title, you need to add a new one manually at the beginning of your post content (in the post editing page content editor).