When the contents of Form Letter Machine variables start with blanks, they are truncated. This problem was introduced to the three latest versions of the TFLM, but doesn't appear in the earlier releases.
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Concerning a separate problem, if a target file name is given in the shortcut that launches the TFLM, then the program is exited without saving the output file (i.e. without using the Close button), a 0K output file is created on the disk. It would be nice if this empty file was just deleted.