Multisig 2/3 does not work. Failed to perform multisig keys exchange: Failed to derive public key
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If you want to recreate issue, try creating 2/3 multisig wallet via cli, you will not be able to complete second key exchange for all users. Bug is difficult.
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This happen every time I do second round of exchange_multisig_keys for 2/3. Every time i do it perfectly like documentation, passing in correct order.

I do prepare_multisig.
I do  make_multisig [info1, info2], make_multisig [info1, info3] etc like they do in docs.
i do "exchange_multisig_keys info1 info2" etc with info from last command.

then i do "exchange_multisig_keys info1 info3" etc with info from last command.

 It works with first wallet that does the command, so long as wallet hasnt been closed after first exchange, else it fails like the others. All respond with : Failed to perform multisig keys exchange: Failed to derive public key