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Dash DMT v0.9.22-hotfix5 for Leger Nano S released with support for DIP2 tx inputs:
https://github.com/Bertrand256/dash-masternode-tool/releases/tag/v0.9.22
This compilation solves the “mandatory-script-verify-flag-failed (Signature must be zero for failed CHECK(MULTI)SIG operation)” problem occurring when sending transactions with DIP2 input(s).
Author: Bertrand
Original link: https://github.com/Bertrand256/dash-masternode-tool/releases/tag/v0.9.22