I 'm trying to perform a sustained load test on multichain with 2 peers. Recently I 've started seeing a lot of invalid blocks. Can you please let me know the reason for getting such blocks. Right now I 'm not sending any request to my multichain still new blocks are getting mined which I think because of autocombining feature which I included in the runtime. But why blocks are being marked invalid, that's a concern and when it happens so I lose all transactions in that block?
2017-11-30 07:58:27 MultiChainMiner: Block Found - 00e0b15d819fb821d2157f5bbf931e3550991ae50238b7495d78136e28a04d65, prev: 005d3ddc79d86b6900f1958a96682ac24297ac5b26d909df2ea38bc7bc3b0568, height: 5123, txs: 2
2017-11-30 07:58:27 ERROR: ContextualCheckBlock : block height mismatch in coinbase
2017-11-30 07:58:27 ERROR: ProcessNewBlock : AcceptBlock FAILED
2017-11-30 07:58:27 ERROR: MultiChainMiner : ProcessNewBlock, block not accepted
It is a very critical issue as per me.