Cut, paste, undo, paste, crash

• Sep 14, 2021 - 20:23
Reported version
3.6
Type
Functional
Frequency
Once
Severity
S2 - Critical
Reproducibility
Randomly
Status
active
Regression
No
Workaround
No
Project
MuseScore

1) Cut (ctrl+x) a Change Instrument text element
2) Paste (ctrl+v) it somewhere
3) Undo (ctrl+z)
4) Select a different measure and paste (ctrl+v) again
Sometimes it crashes, sometimes it doesn't.

Comments

• Sep 18, 2021 - 12:06

I could in 3.6.2. There is no 3.6.3 ... but I can't in my branch from PR #9000

In fact I can there too, stack trace:

1 std::__atomic_base::load atomic_base.h 396 0xcb5441
2 QAtomicOps::loadRelaxed qatomic_cxx11.h 239 0xcb5441
3 QBasicAtomicInteger::loadRelaxed qbasicatomic.h 107 0x1049298
4 QtPrivate::RefCount::ref qrefcount.h 55 0x101b358
5 QList::QList qlist.h 856 0xf82caf
6 Ms::Drumset::variants drumset.h 80 0x1058964
7 Ms::Drumset::findVariant drumset.cpp 218 0x96b5a2
8 Ms::Note::ppitch note.cpp 2454 0xa3c215
9 Ms::Note::draw note.cpp 1268 0xa36538
10 Ms::paintElement navigator.cpp 326 0x44b8ee
11 Ms::Note::scanElements note.cpp 2303 0xa3b73b
12 Ms::Chord::scanElements chord.cpp 1217 0x93fbab
13 Ms::Segment::scanElements segment.cpp 1191 0xa89c5e
14 Ms::Measure::scanElements measure.cpp 2622 0xa27054
15 Ms::Navigator::paintEvent navigator.cpp 382 0x44bf44
16 QWidget::event(QEvent *) 0x327c3d78
17 QApplicationPrivate::notify_helper(QObject *, QEvent *) 0x3278790e
18 QApplication::notify(QObject *, QEvent *) 0x3278e3e3
19 QCoreApplication::sendSpontaneousEvent(QObject *, QEvent *) 0x68a65f78
20 QWidgetPrivate::sendPaintEvent(QRegion const&) 0x327bbb78
...

Funny enough the score used doesn't have any drumset nor does the change instrument text uses one (Just flute and voice, changing to oboe)

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