Created this file in 3.6, opens fine, won't open in 4 (crashes)

tjfs

• May 24, 2025 - 10:53

Please see attached

Attachment	Size
Haec dies Morley.mscz	24.66 KB

Comments

DanielR

• May 24, 2025 - 11:13

I exported the score as MusicXML, which then imported into MuseScore Studio 4.5.2 without problems.

The crash is possibly because you used Staff text for the composer details? This showed up because a sound flag was generated for the composer name in MuseScore 4.5.2. It's much better to add the Composer details to the Title frame with Add > Composer.

Attachment	Size
Haec dies Morley - MuseScore 4-5-2.mscz	75.39 KB

Jojo-Schmitz

• May 24, 2025 - 15:05

I guess that export got gid of the extra (non-top-staff) voltas

ILPEPITO

• May 24, 2025 - 16:17

If I may answer, I think the issue is more complex, the export in xml has kept everything; in the original file instead there is an error just at the end of the fourth staff, and I only corrected that.

Jojo-Schmitz

• May 24, 2025 - 17:36

Still: this should get reported on GitHub

ILPEPITO

• May 24, 2025 - 21:31

I just got home now, and I missed the whole nice discussion. I don't understand one thing: is the invitation to report the hypothetical problem to GitHub addressed to me? I don't know if it's a bug in the program or some careless 'maneuver' by the user, so I wouldn't even know what to report. If it's not like that, ignore what I just wrote.

Jojo-Schmitz

• May 24, 2025 - 21:53

It is an invitation to you or the OP to report this on GitHub

ILPEPITO

• May 24, 2025 - 13:32

The problem, at the mscx file level, was generated in the 'Volta' indications; once this was corrected, the score also opened in version 4.5.2.
To avoid further problems I suggest deleting all improper 'Volta' indications. These indications must be only on the topmost staff.

Attachment	Size
Haec dies Morley 4_5_2.mscz	76.92 KB

Jojo-Schmitz

• May 24, 2025 - 15:02

It shouldn't crash though, esp. as that is the Mu3 workaround for haing voltas and others than the top staff (Mu4 supports that out of the box, as of 4.5), best report this in GitHub, https://github.com/musescore/MuseScore/issues/new/choose, so it can get fixed.

Jojo-Schmitz

• May 24, 2025 - 17:39

Seems the culprit is the volta in the 2nd to last measure on the last staff, which for some strange reason seems to belong to voice 2 (it is green, when selected).
Any idea how you managed this?

Jojo-Schmitz

• May 24, 2025 - 18:04

It crashes here:

        } else if (segment->segmentType() & SegmentType::BarLineType) {
            BarLine* barLine = toBarLine(segment->elementAt(track()));
            if (barLine->barLineType() == BarLineType::END_REPEAT || barLine->barLineType() == BarLineType::END_START_REPEAT) { // <<<<<
                x += symWidth(SymId::repeatDot) + style().styleMM(Sid::repeatBarlineDotSeparation);
            }
            x += 0.5 * absoluteFromSpatium(lineWidth());
        }

barline being a nullptr
bandaid fix:

        } else if (segment->segmentType() & SegmentType::BarLineType) {
            BarLine* barLine = toBarLine(segment->elementAt(track()));
            if (barLine && (barLine->barLineType() == BarLineType::END_REPEAT || barLine->barLineType() == BarLineType::END_START_REPEAT)) {
                x += symWidth(SymId::repeatDot) + style().styleMM(Sid::repeatBarlineDotSeparation);
            }
            x += 0.5 * absoluteFromSpatium(lineWidth());
        }

But that results in too large a gap between the end of the volta and the repeat barline:
Screenshot 2025-05-24 191012.png
Bad hack fix for that:

        } else if (segment->segmentType() & SegmentType::BarLineType) {
            BarLine* barLine = toBarLine(segment->elementAt(track()));
            if (!barLine || (barLine->barLineType() == BarLineType::END_REPEAT || barLine->barLineType() == BarLineType::END_START_REPEAT)) {
                x += symWidth(SymId::repeatDot) + style().styleMM(Sid::repeatBarlineDotSeparation);
            }
            x += 0.5 * absoluteFromSpatium(lineWidth());
        }