[GP]: Empty scores when opening .gpx files, related to layout
Nightly 421f366 / Windows 7
Same result: no notes, empty scores
Remark: I can fix all these scores, first, simply by opening GP6 and by activating the "design mode" (the GP layout, in other words).
Then by adding or subtracting a measure in the first system. I save, and that's all.
By reopening with MuseScore, all notes entered in voice 1 reappear.
For instance, see the result for: