I give up guys, maybe it's because I'm using a X-bow broadhead target and they maybe too dense....or possibly I am. I tried different glue and still get shaft only back. I'm thinking seriously of just going to rage mechanicals.
Try sharpening the back part of the blades. Being dull/unsharpened they probaly catch and cannot cut themseelves free of target material when you're pulling them backwards.
I lost a boltcutter head today for the first time, I think the new arrow I was using was not made right because I have been using the same set up for months now and always got them out before. If this rhinehard 18-1 ever wears out I will cut it apart and get my head back. ( I should live so long)