Oh that transaction was lost due to orphan block.
I resent those transactions again.

Zcash based coins have similar problems. Transactions are lost when included block is found orphan. It doesn't happen all the time, but happens time to time.



FYI, if you type below command you would be able to check from your side what happened.

zcash-cli gettransaction f543218add1ae51d3cbf2298f1312aeb2f64b409828683819413742da1b83c41


{
  "amount": 0.00000000,
  "confirmations": -1,
  "txid": "f543218add1ae51d3cbf2298f1312aeb2f64b409828683819413742da1b83c41",
  "walletconflicts": [
    "07440f8ac623843d83eb2dd81ea4af38d3e15cecc2971122fc35f233f16442ae"
  ],
  "time": 1504555957,
  "timereceived": 1504555957,
  "vjoinsplit": [
    {
......
}