Convert problem with a nwc file

[simon-brizard]

Hello,

When trying to convert the file attached to this issue, some errors appear :

Stave 8 (51) has a different length to Stave 1 (50)
Barline Error Bar 17: staff 1 has Style|Double and staff 8 does not
Barline Error Bar 18: staff 8 has Style|Double and staff 1 does not
Barline Error Bar 24: staff 1 has Style|Double and staff 8 does not
Barline Error Bar 25: staff 8 has Style|Double and staff 1 does not
Barline Error Bar 33: staff 1 has Style|Double and staff 8 does not
Barline Error Bar 34: staff 8 has Style|Double and staff 1 does not
Barline Error Bar 40: staff 1 has Style|Double and staff 8 does not
NWCTXT file has inconsistent flow control across staves - the file is invalid and may not import correctly

The result of the conversion can be opened with musescore but it displays the following errors :

Mesure 51, portée 1 incomplète. Attendu : 12/8; Trouvé : 0/1
Mesure 51, portée 2 incomplète. Attendu : 12/8; Trouvé : 0/1
Mesure 51, portée 3 incomplète. Attendu : 12/8; Trouvé : 0/1
Mesure 51, portée 4 incomplète. Attendu : 12/8; Trouvé : 0/1
Mesure 51, portée 5 incomplète. Attendu : 12/8; Trouvé : 0/1
Mesure 51, portée 6 incomplète. Attendu : 12/8; Trouvé : 0/1
Mesure 51, portée 7 incomplète. Attendu : 12/8; Trouvé : 0/1
Mesure 51, portée 9 incomplète. Attendu : 12/8; Trouvé : 0/1

And the score is not complete.

Attached to this issue, you can find a zip file containing the original file (C'est comme ça que je t'aime Tutti.nwc) and the converted one (C'est comme ça que je t'aime Tutti.nwc.xml)
C'est comme ça que je t'aime Tutti.zip