It appears that cursor- and terminal control sequences don't work correctly with FreeBSD

[Bushmills]

Those are used for positioning the status line which is enabled by default, and for colour changes of input line and errors. Those terminal controls are taken from tput, and the problem may need more examination.
Disable input line colour changes and inclusion of statusline code by editing the file "defaults" in yoda directory: Remove "newprompt$" from the line which starts with "needs:"