Thank you for reporting.
We have managed to reproduce your issue and confirmed a new bug.
This problem is caused by a new instance of Select String UI, which is used by certain NPCs. “Merchant & Mender” is one of them.
Previously all instances of Select String were universal, but since Patch 6.2 it’s no longer the case. As Miqobot can not identify the new instance correctly, she can not select the necessary line in the menu.
We are already working on a fix.
However, it will require the implementation of new algorithms for UI navigation module, so it might take some time.
In the meantime, please avoid using repairNpc() function with NPCs that require line selection, such as “Merchant & Mender”. Please look for exclusive Menders instead.
We sincerely apologize for inconvenience.