Problem creating consecutive scores from same template (Next and Finish buttons disabled in dialogue)

Musescore 0775f63
Win 7

Run Musescore
New
Create new score from template
Next
Select UK Brass band template (for example, any template, but use same template for each score)
Finish

...A score is created as expected

New
Create new score from template
Next
(UK Brass band template is highlighted)
The Next and Finish buttons in the dialogue are disabled
Click UK Brass band again
Nothing changes, the next and finish buttons remain disabled
Select a different template
The next and Finish buttons become enabled
Click UK Brass band template
Click Finish

The new score is then created.