UDP "#" doesn't work when trying to change database field labels

<U1> $ patch #

then

<U1> $ clear_cmd Text1 label labeltexthere #

then

<U1> $ live #

_____

Expected result: Text1's field name is changed to labeltexthere

Actual result: Nothing happens. If I disable the "live" step (3), U1's command line is still waiting for an "enter" with the onscreen keyboard pulled up and doesn't seem to register the # at the end of the second string there

Have tried putting the text in quotes but that yields the same results. \r instead of # also yields the same result. Note that # works for me for literally everything else except this particular command. 

Any ideas?

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