Block xxxxx submission failed with: Block decode failed
### Description
submission failed with: Block decode failed

[Description of the issue]
x11 coin Failure to submit normally, Appear "Block xxxxx submission failed with: Block decode failed"

### Steps to Reproduce
1. start pool
2. mining
3. Block xxxxx submission failed with: Block decode failed

### Expected behavior
submitted
### Actual behavior
no submitted

### Reproduces how often
100%

### Version
Master

### Additional Information
##coins.json
"hasMasterNodes": true,
##getblocktemplate
{
  "capabilities": [
    "proposal"
  ],
  "version": 536870912,
  "rules": [
  ],
  "vbavailable": {
  },
  "vbrequired": 0,
  "previousblockhash": "00000000000982e1df8ba1cd922379f113a7853209e9a7ad07fda06e5526a60e",
  "transactions": [
  ],
  "coinbaseaux": {
    "flags": ""
  },
  "coinbasevalue": 6084000000,
  "longpollid": "00000000000982e1df8ba1cd922379f113a7853209e9a7ad07fda06e5526a60e13",
  "target": "0000000000124399000000000000000000000000000000000000000000000000",
  "mintime": 1568426284,
  "mutable": [
    "time", 
    "transactions", 
    "prevblock"
  ],
  "noncerange": "00000000ffffffff",
  "sigoplimit": 40000,
  "sizelimit": 2000000,
  "curtime": 1568426611,
  "bits": "1b124399",
  "height": 287153,
  "masternode": {
    "payee": "XnXCu4jfxC3zqKM4kcQBMKGuKe1ZqE9jtg",
    "script": "76a91481ceef3fa6cde058e8eda14b2b3a4202d7ca472b88ac",
    "amount": 3042000000
  },
  "masternode_payments_started": true,
  "masternode_payments_enforced": true,
  "superblock": [
  ],
  "superblocks_started": true,
  "superblocks_enabled": false
}

##LOG
[2019-09-14 08:11:17.0973] [I] [BSH] Submitting block 287032 [00000000000a90d5c7389d9bc6400ed78aece253e2458779952780a28e15f317] 
[2019-09-14 08:11:17.0973] [D] [BSH] ExecuteBatchAnyAsync("submitblock", "getblock") 
[2019-09-14 08:11:17.0973] [W] [BSH] Block 287032 submission failed with: Block decode failed 
[2019-09-14 08:11:17.0973] [D] [BSH] [0HLPOK57PO5KK] Sending: {"result":true,"error":null,"id":235} 
[2019-09-14 08:11:17.0973] [I] [BSH] [0HLPOK57PO5KK] Share accepted: D=109.011 
[2019-09-14 08:11:17.1016] [D] [BSH] [0HLPOK57PO5KK] Updating VarDiff 
[2019-09-14 08:11:17.1016] [D] [MessageBus] Listening to Miningcore.Mining.ClientShare: 
[2019-09-14 08:11:17.1016] [D] [BSH] [0HLPOK57PO5KK] [PIPE] Waiting for data ... 
[2019-09-14 08:11:17.1502] [D] [BSH] [0HLPOK57PO5KI] Updating VarDiff [idle] 
[2019-09-14 08:11:17.1502] [D] [MessageBus] Listening to Miningcore.Mining.ClientShare: 
[2019-09-14 08:11:17.1502] [I] [BSH] [0HLPOK57PO5KI] VarDiff update to 76.03 
[2019-09-14 08:11:17.1502] [D] [BSH] [0HLPOK57PO5KI] Sending: {"jsonrpc":"2.0","method":"mining.set_difficulty","params":[76.033281819155221],"id":null} 
[2019-09-14 08:11:17.1502] [D] [BSH] [0HLPOK57PO5KI] Sending: {"jsonrpc":"2.0","method":"mining.notify","params":["00000153","3ffb913b104a6b722d1d8abac62e71ba5368b4f2b130622100023fa500000000","01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff1f033861040422307c5d00","0c2f4d696e696e67436f72652f0000000002803c51b5000000001976a9149824a47f1692cc56b0b65de2da1c24d8b5d8855488ac803c51b5000000001976a9146b5f11f14fb1836c4cf57e07dcfbe351aba1060b88ac00000000",[],"20000000","1b0b8321","5d7c3022",false],"id":null} 
[2019-09-14 08:11:17.3911] [D] [BSH] [0HLPOK57PO5KK] [NET] Received data: {"id":236,"method":"mining.submit","params":["Xgc5Y2zNmKriVLaQ9KyFJTggeuSEwNw8L2","00000153","2c2b0100","5d7c302a","6a1ce162"]}
 
[2019-09-14 08:11:17.3911] [D] [BSH] [0HLPOK57PO5KK] [NET] Waiting for data ... 
[2019-09-14 08:11:17.3911] [D] [BSH] [0HLPOK57PO5KK] [PIPE] Received data: {"id":236,"method":"mining.submit","params":["Xgc5Y2zNmKriVLaQ9KyFJTggeuSEwNw8L2","00000153","2c2b0100","5d7c302a","6a1ce162"]}
 
[2019-09-14 08:11:17.3911] [D] [BSH] [0HLPOK57PO5KK] Dispatching request 'mining.submit' [236] 
[2019-09-14 08:11:17.3911] [D] [BSH] SubmitShareAsync(0HLPOK57PO5KK) 
[2019-09-14 08:11:17.3911] [I] [BSH] [0HLPOK57PO5KK] Share accepted: D=109.011 
[2019-09-14 08:11:17.3911] [D] [BSH] [0HLPOK57PO5KK] Sending: {"result":true,"error":null,"id":236} 
[2019-09-14 08:11:17.3911] [D] [BSH] [0HLPOK57PO5KK] Updating VarDiff 
[2019-09-14 08:11:17.3911] [D] [MessageBus] Listening to Miningcore.Mining.ClientShare: 
[2019-09-14 08:11:17.3911] [D] [BSH] [0HLPOK57PO5KK] [PIPE] Waiting for data ... 
[2019-09-14 08:11:17.5955] [D] [BSH] UpdateJob() 
[2019-09-14 08:11:17.5955] [D] [BSH] GetBlockTemplateAsync() 
[2019-09-14 08:11:17.5955] [D] [BSH] ExecuteCmdAnyAsync("getblocktemplate") 
[2019-09-14 08:11:18.6302] [D] [BSH] UpdateJob() 
[2019-09-14 08:11:18.6302] [D] [BSH] GetBlockTemplateAsync() 
[2019-09-14 08:11:18.6302] [D] [BSH] ExecuteCmdAnyAsync("getblocktemplate") 
