I guess the solo problem is totally fixed. Found of DigitalcoinX11 block.
NeoScrypt--
There is suspicion that NeoScrypt algo is still not working. It may be due to a problem that lies in the wallet. I haven't been able to solo-mine FeatherCoin. I will try another NeoScrypt coin, OrbitCoin, later today.
--scryptr
sp_ just merged my PR adding a new flag "--broken-neo-wallet" to work around the known issue of the malformed data parameter. So that will be available in 70, whenever it's cut. There may be some other problems though, as I never saw any GPU status updates after soloing PhoenixCoin for ~1hr.