KBM file not accepted

I have a valid Scala file working just fine in Pianoteq - a 19-note/Oct scale, but when I try to add a KBM file as below, it gives me the error message below:

"Invalid keymap size at Line 1."

Here is my KBM file text:

! Hexany3579(C).kbm:
!
! Size of map. The pattern repeats every so many keys:
19
! First MIDI note number to retune:
0
! Last MIDI note number to retune:
127
! Middle note where the first entry of the mapping is mapped to:
60
! Reference note for which frequency is given:
60
! Frequency to tune the above note to (floating point e.g. 440.0):
261.625565
! Scale degree to consider as formal octave (determines difference in pitch
! between adjacent mapping patterns):
19
! Mapping.
! The numbers represent scale degrees mapped to keys. The first entry is for
! the given middle note, the next for subsequent higher keys.
! For an unmapped key, put in an "x". At the end, unmapped keys may be left out.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18