Richie said before the WAN tour that he was excited because he was getting to play his new album on the tour. Obviously one song a night but a rotation of his album tracks.

I don't have the link or remember exactly where he said it but he definitely did because I was quite surprised to see that he didn't even get to sing at all.

It's been discussed to death on here about what caused the split but perhaps Jon gave Richie the opportunity to sing his songs each night on the condition that he not f*ck around and Richie either missed a rehearsal or turned up drunk and Jon slammed the door shut. Which caused huge resentment.

It's a possibility.