5 years ago I created a Copay app, and I can not import it or recover it. I have the 12 word all the address. Leftover money stays there. But I can not import anymore with Copay. Something wrong, I do not know what.
If your mnemonic (12 word) confirms to BIP32/BIP44, you can try this
pip3 install btc-address-dump
Here is an example:
$ btc_address_dump "olympic wine chicken argue unaware bundle tunnel grid spider slot spell need" mnemonic = olympic wine chicken argue unaware bundle tunnel grid spider slot spell need private key (hex) = c7ac679b56f50bfd54dd924fe45a8dca7a1c2dced254b03dac22afc03adb9127 private key (WIF) = 5KLDyKtrScLYsKMJzVCt8Mf6Nn9DEV7V3fg8njfSZnqe7ZEMqzK private key (WIF compressed) = L3urFcPsE2yHf5zeQjVSfUB8j8FEzX5cnmhjNsJfqjKgowPP4tmg public key (uncompressed) = 044cd0aaeca3b636078583408e75edd77307b5190ca7a48bb9fbc1f2576c17dff1087190d91e26af594e3f8ecd3f4d3596c03c45d3b235da916903c930c6593cc4 public key (compressed) = 024cd0aaeca3b636078583408e75edd77307b5190ca7a48bb9fbc1f2576c17dff1 legacy address (p2pkh uncompressed) = 1Q5RqZctfcNkTPad2tuJSREByd2gB8xs63 legacy address (p2pkh compressed) = 12W36tm2jnreFiYdrzfE6cvRaKRbicEpnA p2sh-segwit address (p2sh p2wpkh) = 3AzXxVUqdzvzEqVmdtmeVqRwc98uqwyh76 bech32 address (p2wpkh) = bc1qzp6lz6zy9p7k68r0a7lzfpkdxvj3yapynzuatt
Add 12 words (the seed) on another wallet, electrum (https://electrum.org) for example.