Voltas not playing correctly when score first opened

On playback, after initial score opening, the prima volta (V1,2,4,) does not skip the 3rd volta verse and continue at measure 6 but plays straight through as though there is no volta present. More weirdly by deleting the 3rd volta, then undoing that action and playing again, the score plays as notated. I may be using voltas in the wrong way as I know they are usually placed next to a repeat barline and not in the middle of the score but it worked in MS3 and it works if I do the above action.
On checking for updates it says I have the latest MS version,
I am using Windows 11 home on a laptop.
PS I redacted most of the score to showcase the issue.