Cannot Close Head

[reeshavacharya]

Context & versions

• cardano-node 10.1.2 (preview testnet)
• hydra-node 0.19.0-1ffe7c6b505e3f38b5546ae5e5b97de26bc70425

Steps to reproduce

• start hydra node for alice and bob just as in the docs
• alter protocol parameters file for hydra node to have 0 execution cost and fee
• initialize the head
• alice and bob commit UTxOs
• perform no transactions and close the head with : {"tag": "Close"} to the websocket
• the head did not close for 60 seconds so i sent the close request multiple times
• this is the failure message:
  "failureReason": "TxValidationErrorInCardanoMode (ShelleyTxValidationError ShelleyBasedEraConway (ApplyTxError (ConwayUtxowFailure (ExtraRedeemers [ConwaySpending (AsIx {unAsIx = 0})]) :| [ConwayUtxowFailure (PPViewHashesDontMatch (SJust (SafeHash \"1623fa9fdd25cd659bf549f69f1438c3407344e8f1cbbf6c3b527e0a908b97b1\")) (SJust (SafeHash \"eae94c6c274f429b0a39f391818710f7c8e75670bfc534db8a1192e930ce6cc6\"))),ConwayUtxowFailure (UtxoFailure (ValueNotConservedUTxO (MaryValue (Coin 0) (MultiAsset (fromList []))) (MaryValue (Coin 374454326) (MultiAsset (fromList [(PolicyID {policyID = ScriptHash \"4890520ac856ce65f17a1357a0b22bf5311ee30b2bd77ff20a93449d\"},fromList [(\"4879647261486561645631\",1),(\"e696fc821063f9b7311bb350539e67c8fad1bd571605e75b5a353eab\",1),(\"fce240ccfcb839aa37e5b04206a84530e027b0d3bfb596e7d0685f6a\",1)])]))))),ConwayUtxowFailure (UtxoFailure (BadInputsUTxO (fromList [TxIn (TxId {unTxId = SafeHash \"dc2dda4178dc86392755264e7874e01102115c9f33a3c7a228e4f661d7305862\"}) (TxIx {unTxIx = 0}),TxIn (TxId {unTxId = SafeHash \"dc2dda4178dc86392755264e7874e01102115c9f33a3c7a228e4f661d7305862\"}) (TxIx {unTxIx = 1})]))),ConwayUtxowFailure (UtxoFailure NoCollateralInputs),ConwayUtxowFailure (UtxoFailure (InsufficientCollateral (DeltaCoin 0) (Coin 2820978)))])))",
• assuming it was a collateral issue, i funded alice-funds.addr and bob-funds.addr, but still got the same issue.

Expected behavior

• The head should be able to close