I have a Zoo Visitor form that populates a channel entry. All is well in that it actually submits the content. However, the strange thing is I would have no way of knowing that until I check ExpressionEngine's control panel and seeing that the edits have been made -- because the browser hangs the moment I press submit. It looks like it's perpetually loading. Then trying to go anywhere else on the site makes it super super slow.
When I close the browser and visit the form again, everything loads fast on the site. But when I make a change in the form and press enter, again, browser hangs forever even though it looks like it submitted in EE. It never goes to the /success/ page.