Edit Review - Select Post ID's not loading posts/pages

I'm having to edit a bunch of reviews and assign them to post id's. The problem I'm having... go to > Review List > edit a review > scroll down to Review Post ID's > click on Select Post ID's, nothing ever loads. If I manually enter id's there is no problem. But not being able to click that to select the post ID's I'm having to go to > Dashboard > Pages and get the ID's I need, then go back and edit the review and manually enter the id's. Is there a way to fix this? Or, is this just happening to me?