Secretcli on Windows PowerShell - Invalid character when trying to sign delegate offline tx

[SecretBeam]

./secretcli tx staking delegate secretvaloper1xj5ykuzn0mkq9642yxgqmh4ycplzhr2pza25mk 1uscrt --from=secret19d55nsk0wwu8l5nshas90xmtvge0sesp5aqpp6 --chain-id=secret-4 --generate-only > unsignedDelegateTx.json
./secretcli.exe tx sign --chain-id=secret-4 --from=Test unsignedDelegateTx.json > signedDelegateTx.json --offline --sequence=2 --account-number=1

-> Error: invalid character 'ÿ' looking for beginning of value: tx parse error

[SecretBeam]

Same with tx distribution withdraw-rewards