BUG - Sometimes transactions are not signed correctly.

[jankun4]

I'm testing the wallet and I found some weird behaviour. Sometimes after signing transaction the vkwitness list is empty. I have no idea why this happens. I hoped to just look in the source code to see why this would be the case, but since there is no way to do that I'm hoping I can get some insight from you.

Transaction that fails to be signed:

• before signing:

  84a400818258208f9a278896dc846a413da7216e303568ceab283580f823927f3853a76edbdce200018382583900c14de70de75db9d0fc0aa3d1cce8dbcf3dbf86bc3ce9fcaee8345df75c83f74bffd4add6ea2835b0f8ffd8c25465a493200f7fd4d8735b25821b00000001ac1cbe23a2581c07cceab5ea30fd508ab7cb79fb14a6640ae183aa0bc110f73b4c51e4a3434a414e1b000000e8d46bc020444c5543591b000009184d7e7c0044504c41431a3b9aa2f0581cc6cc953af29c76fa4e674af6de620d2334a13143334c05e83c497e00a344424152541b01634526c8125000454d414749431b00038d7e692bb600444d494b451a3b9aa22883581d705130ca1a151ad81701a9fe87444202c63013fdc31452d720ad6ef9eb821a0053ec60a1581c07cceab5ea30fd508ab7cb79fb14a6640ae183aa0bc110f73b4c51e4a1444c5543591a000f42405820574c08d624bb4373da9982462ee9780960372def3e8810aef887f93315fc214d82583900c58c5b47a77337c767ebe25a29167972477fc3f110af6f6825ee8867303a8bc77ffb1d6c5b82dff8a29b0fd158af133cc214a5dc65ed7a231a000f4240021a0002de510b58201ab7eeb14b1729d0202b5a77961a85aba240053be5f0cb529f34107e9097807da10481d8799fd8799fd8799f1909c401ffffd87980581cc14de70de75db9d0fc0aa3d1cce8dbcf3dbf86bc3ce9fcaee8345df7d8799f581c5c83f74bffd4add6ea2835b0f8ffd8c25465a493200f7fd4d8735b25ff9f581cf8ba32c14ecd7a84ede0e60e423415b2e9ca7c5061c2c2e4dd8f73c8ff1a003567e0582436376434323832372d343266362d346263632d616638322d3066363733633862396539311a001e8480fff5f6

• after signing:

  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

Transaction that is signed correctly:

• before signing:

  84a4008182582044404f4f81fde8f5ce1668772a2c115225c04dc6a47d382d490cce9e4378d05500018382583900c14de70de75db9d0fc0aa3d1cce8dbcf3dbf86bc3ce9fcaee8345df75c83f74bffd4add6ea2835b0f8ffd8c25465a493200f7fd4d8735b25821b00000001a88649aaa2581c07cceab5ea30fd508ab7cb79fb14a6640ae183aa0bc110f73b4c51e4a3434a414e1b000000e8d46bc020444c5543591b000009184d1dbe6044504c41431a3b9aa2f0581cc6cc953af29c76fa4e674af6de620d2334a13143334c05e83c497e00a344424152541b01634526c8125000454d414749431b00038d7e692bb600444d494b451a3b9aa22883581d705130ca1a151ad81701a9fe87444202c63013fdc31452d720ad6ef9eb821a0053ec60a1581c07cceab5ea30fd508ab7cb79fb14a6640ae183aa0bc110f73b4c51e4a1444c5543591a00081650582044b56812ad5df4ac1c1e6145fc9974feac6c190e870ecb10f3afd10f21e0464982583900c58c5b47a77337c767ebe25a29167972477fc3f110af6f6825ee8867303a8bc77ffb1d6c5b82dff8a29b0fd158af133cc214a5dc65ed7a231a000f4240021a0002de510b582083d781eecfa68e7e6c6c4a4429c0a793e8e690af1e8bd5976cebb6a125081291a10481d8799fd8799fd8799f1904dd01ffffd87980581cc14de70de75db9d0fc0aa3d1cce8dbcf3dbf86bc3ce9fcaee8345df7d8799f581c5c83f74bffd4add6ea2835b0f8ffd8c25465a493200f7fd4d8735b25ff9f581cf8ba32c14ecd7a84ede0e60e423415b2e9ca7c5061c2c2e4dd8f73c8ff1a003567e0582466303436326664642d303039332d343133302d613537382d3233356666343531366632371a001e8480fff5f6

• after signing

  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

[MarcelKlammer]

Depends. If the utxos are not known to the wallet yet (not synced yet) the utxos are not signed. That might be it.