∂29-OCT-75  1642	1,REM
You are emitting a <cr><lf> -- the <cr> is expanded to <cr><lf> on DEC 10
systems etc. so you are getting <cr><lf><lf> into the place after "R POX".
POX sees the null string between the two linefeeds and announces the error
then flushes input thereby losing what you (your program) have typed ahead...
I suggest, to get around this problem (which I first noticed when writing
a "do" file to initialize LISP) you must use a linefeed or altmode instead of
a crlf to delimit commands.  In the case of "R POX" <DELIM> "←FILE" <DELIM>
linefeed works ok in both places, so I suggest you say &'12& between
the two parts of your string constaot in sail...