I've stopped receiving coins to my wallet and the deamon shows the following errors, any pointers on how to trouble shoot?

2018-05-06 22:57:05.069 [RPC0]  ERROR   cn      src/cryptonote_basic/cryptonote_format_utils.cpp:133 Failed to parse transaction from blob
2018-05-06 22:57:05.085 [RPC0]  ERROR   daemon.rpc      src/rpc/core_rpc_server.cpp:169 Failed to parse and validate tx from blob
2018-05-06 22:57:19.116 [RPC0]  ERROR   cn      src/cryptonote_basic/cryptonote_format_utils.cpp:133 Failed to parse transaction from blob
2018-05-06 22:57:19.116 [RPC0]  ERROR   daemon.rpc      src/rpc/core_rpc_server.cpp:169 Failed to parse and validate tx from blob
2018-05-06 22:57:31.068 [RPC1]  ERROR   cn      src/cryptonote_basic/cryptonote_format_utils.cpp:133 Failed to parse transaction from blob
2018-05-06 22:57:31.068 [RPC1]  ERROR   daemon.rpc      src/rpc/core_rpc_server.cpp:169 Failed to parse and validate tx from blob

There is reference here to the error and mention of the Monero fork https://monero.stackexchange.com/questions/7254/failed-to-parse-transaction-from-blob-failed-to-validate-transaction-from-daemo however these errors came from the most recent 2.1.0 version wallet from here https://github.com/havenprotocol/haven/releases

Ok, done and now working. I think you are saying that MPH shouldn't be configured as a Custom Pool?

On another matter, after I have done the Optimisation, how do I transfer the values to the cards? If I look at the Overclocking section of the Devices tab, it is not pre-populated with the values that have been derived by the optimisation process which is what I was expecting.

Mining Pool Hub does things differently for some reason... It is one of the default pools, though.
Did you try it as a default pool? Just move up Mining Pool Hub on the pool list and enter your username
under "Pool Parameters."
[/quote]

Hi, are you referring to Pool Priorities and and Pool Parameters on the Default Pools tab? They are greyed, I can't select them. Likewise the Wallet Addresses are all greyed out. MPH is the only pool I have defined so far.

Edit: Ah, I found I had to UNcheck Use Custom Pool on the Compute tab before I could edit the MPH fields. I have moved MPH to the top of Pool priorities, set my MPH username and worker. When I go back to Compute, tick Use Custom Pools I now get this error, it looks as though GGS is typing to connect to a stratum server at MPH, is that correct:

018-04-30 16:15:00.5757 [3]     Line Number: 3769
2018-04-30 16:15:00.5757 [3]     StackTrace:     at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
   at System.Net.Sockets.Socket.Bind(EndPoint localEP)
   at System.Net.Sockets.TcpListener.Start(Int32 backlog)
   at GatelessGateSharp.MainForm.<Task_APIListener>d__162.MoveNext()
2018-04-30 16:15:02.6072 [3] Exception: Only one usage of each socket address (protocol/network address/port) is normally permitted
2018-04-30 16:15:02.6072 [3]     Member:      Task_APIListener
2018-04-30 16:15:02.6072 [3]     Source File: D:\GitHub\GatelessGateSharp\GatelessGateSharp\MainForm.cs
2018-04-30 16:15:02.6072 [3]     Line Number: 3769
2018-04-30 16:15:02.6072 [3]     StackTrace:     at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
   at System.Net.Sockets.Socket.Bind(EndPoint localEP)
   at System.Net.Sockets.TcpListener.Start(Int32 backlog)
   at GatelessGateSharp.MainForm.<Task_APIListener>d__162.MoveNext()
2018-04-30 16:15:02.9978 [1] Stopping miners...
2018-04-30 16:15:03.0135 [11] Ethash stratum server failed to send a new job.
2018-04-30 16:15:03.0447 [22] Ethash stratum server failed to send a new job.
2018-04-30 16:15:03.0447 [25] Ethash stratum server failed to send a new job.
2018-04-30 16:15:03.0447 [26] Ethash stratum server failed to send a new job.
2018-04-30 16:15:03.0760 [19] Ethash stratum server failed to send a new job.
2018-04-30 16:15:03.0760 [23] Ethash stratum server failed to send a new job.
2018-04-30 16:15:03.0760 [27] Ethash stratum server failed to send a new job.
2018-04-30 16:15:03.1072 [20] Ethash stratum server failed to send a new job.
2018-04-30 16:15:03.1072 [21] Ethash stratum server failed to send a new job.
2018-04-30 16:15:03.6073 [1] Stopped miners.
2018-04-30 16:15:04.6386 [3] Exception: Only one usage of each socket address (protocol/network address/port) is normally permitted
2018-04-30 16:15:04.6386 [3]     Member:      Task_APIListener
2018-04-30 16:15:04.6386 [3]     Source File: D:\GitHub\GatelessGateSharp\GatelessGateSharp\MainForm.cs
2018-04-30 16:15:04.6386 [3]     Line Number: 3769
2018-04-30 16:15:04.6386 [3]     StackTrace:     at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
   at System.Net.Sockets.Socket.Bind(EndPoint localEP)
   at System.Net.Sockets.TcpListener.Start(Int32 backlog)
   at GatelessGateSharp.MainForm.<Task_APIListener>d__162.MoveNext()
2018-04-30 16:15:05.9826 [17] Exception in Stratum.StreamReaderThread(): System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
   at System.ThrowHelper.ThrowKeyNotFoundException()
   at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
   at GatelessGateSharp.OpenEthereumPoolEthashStratum.Authorize()
   at GatelessGateSharp.Stratum.StreamReaderThread()
2018-04-30 16:15:05.9826 [17] Reconnecting to the server...

Thank you!

I have a small problem configuring the Custom Pools for MPH. I have put europe.ethash-hub.miningpoolhub.com in the host field, 20535 as the port then my MPH username.worker in the Login and x as the password. I have ticked Use Custom Pools on the Compute tab. I get the following error when I try to start mining:

2018-04-30 15:40:55.8608 [4] Exception in Stratum.StreamReaderThread(): System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
   at System.ThrowHelper.ThrowKeyNotFoundException()
   at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
   at GatelessGateSharp.OpenEthereumPoolEthashStratum.Authorize()
   at GatelessGateSharp.Stratum.StreamReaderThread()
2018-04-30 15:40:55.8608 [4] Reconnecting to the server...
2018-04-30 15:41:03.7210 [1] Stopping miners...

Any clues on how to troubleshoot?

I've been watching this project with interest, it looks very interesting so I decided to take the plunge to mine Eth. I have 9 RX 580 8Gb Armor OC cards. I get around 253-255 MH/s on Claymore Dual 11.x so I'm running the optimisation now to compare. One small UI request, the order of the tabs at the top is Benchmarking to the left of Optimisation. However the order of the buttons at the bottom is the reverse. Please could you reverse the bottom buttons to match the tab order, lt is less confusing? Thanks.