One of the clients I have running appears to have shutdown recently, these were the last lines in debug.log:
trying connection 122.188.105.10:8555 lastseen=403.2hrs
getGrantAwardsFromDatabase 5140
Total Grant award amount:102
Grant award in block 0, 5
Grant award in block MVTEoEo5LgYAMVh95oBBfGPj2eCDzkuJC3, 2057700000
Grant award in block MVTEoEoHX4XhRkJnkGVLKDYhHG4MbJDVCT, 2057700000
Grant award in block MVTEoEoUtxKDFLVRJt8c79oqP5C2GB9oBP, 2057700000
Grant award in block MVTEoEoiMwtXEeHDUYfuwA9ZvbKSH8Jfqb, 2057700000
Grant award in block MVTEoEomFfe7WuSEepMLsorgYzCQGBVw1z, 2057700000
ERROR: ConnectBlock() : coinbase not paying grants to award winners
I would delve deeper into the code if I had time right now.