Software ... has it bugs, or at least "specificational problems". I wrote the first measure of your song (see attachment FranksO.nwc), exported it to MIDI and converted it to text. The result is:
0, 0, Header, 0, 1, 192
1, 0, Start_track
1, 0, Text_t, "By <Name>"
1, 0, Copyright_t, "Copyright © 2022 <Name>"
1, 0, Copyright_t, "All Rights Reserved"
1, 0, Text_t, "Generated by NoteWorthy Composer"
1, 0, Lyric_t, "O "
1, 0, Tempo, 500000
1, 0, Control_c, 0, 7, 127
1, 0, Control_c, 0, 10, 64
1, 0, Key_signature, 2, "major"
1, 0, Time_signature, 4, 2, 24, 8
1, 0, Key_signature, 2, "major"
1, 0, Time_signature, 4, 2, 24, 8
1, 0, Note_on_c, 0, 69, 110
1, 160, Note_on_c, 0, 69, 0
1, 192, Lyric_t, "there'll "
1, 192, Note_on_c, 0, 68, 110
1, 286, Note_on_c, 0, 68, 0
1, 288, Lyric_t, "be "
...
One can see that Noteworthy emits the "O" syllable very early in the MIDI file, before the tempo, key, and time signatures. I don't know whether this is ok by a MIDI or Karaoke file standard, but it seems that the vanBasco player does not like it.
I tried what happened when one puts a rest at the beginning of the score - see the FranksOWithRest.nwc attachment. Voila, it works - the MIDI starts now as below, with the O after all these "signatures"; and vanBasco shows it as expected:
0, 0, Header, 0, 1, 192
1, 0, Start_track
1, 0, Text_t, "By <Name>"
1, 0, Copyright_t, "Copyright © 2022 <Name>"
1, 0, Copyright_t, "All Rights Reserved"
1, 0, Text_t, "Generated by NoteWorthy Composer"
1, 0, Tempo, 500000
1, 0, Control_c, 0, 7, 127
1, 0, Control_c, 0, 10, 64
1, 0, Key_signature, 2, "major"
1, 0, Time_signature, 4, 2, 24, 8
1, 0, Key_signature, 2, "major"
1, 0, Time_signature, 4, 2, 24, 8
1, 768, Lyric_t, "O "
1, 768, Note_on_c, 0, 69, 110
...
So a workaround is putting in a leading full rest and make it invisible. If you don't want to wait for all of it when playing, you could put an invisible tempo of quarter=750 (Noteworthy's maximum tempo) before the rest; and then of course a tempo marker for your intended tempo after the rest.
Yes, it's tricky sometimes ...
Re multiple verses, I added another one (see FranksOWithRestAndTwoVerses.nwc attachment) - at least for me, vanBasco played both texts from an exported MIDI (which I would expect, as Noteworthy simply exports one verse after the other ...).
H.M.