According to The Dirty Sheets Podcast, there was some heat backstage on Dean Ambrose and Seth Rollins after this week's edition of Raw where they defeated The Miztourage. After the match, Ambrose and Rollins hugged in celebration, which was not appreciated by WWE officials. WWE is trying to build up anticipation for the two of them to "officially" reconcile and for them to do the old Shield fist bump.
Apparently WWE is planning on saving the Shield fist bump between Ambrose and Rollins for a later date, most likely SummerSlam. When they hugged after their victory on Raw, top WWE officials, including Vince McMahon and Triple H, were reportedly upset about it and felt as though Ambrose and Rollins should have known better than to hug each other at this stage in the storyline.