Since the dashd update all block found on the p2pool are version 2 and all of them are rejected. The following block is 246895:
block/000000000010cb98a85915145e48a0d8f27e830c5c0a174e5da69eb784f3b50c
debug.log shows this:
2015-04-04 17:38:11 CheckBlock() : Found payment(1|197453174) or...