Error with loop playback in parts with MuseScore 3

• Jan 15, 2019 - 17:43
Reported version
P1 - High
S2 - Critical

Schleife anlegen Takt 14-18 und abspielen (siehe mscz Datei), bei MuseScore 2 tritt der Fehler nicht auf

Attachment Size
08-fac-8stimmig.mscz 16.5 KB


Title Fehler bei der Schleifenwiedergabe in MuseScore 3 Error with loop playback in MuseScore 3
Regression No Yes

take attached score and create loop for Measures 14-18 and play. No problem with MuseScore 2, but with 3

Frequency Once Many
Regression Yes No
Status fixed active

Same issue here. Cannot set start and end points for loop and pressing Play while looping set does nothing.

Works fine for me. Be sure you have the current version of MuseScore - 3.0.1 - and not an alpha, beta, or other pre-release build, as there were indeed bugs with loop mode especially in continuous view.

In reply to by Jojo-Schmitz

Sorry for the vague post.
Version Running on Windows 10.
Selecting "Toggle 'Loop Playback'" with notes selected in middle of score sets the loop start flag to first note in score and loop end flag at closing bar. "Play" does nothing. Same with using "Set Loop In Position" and "Set Loop Out Position" from Play panel.

Which notes are you selecting? I tried selecting bars 14-18 as originally suggested, then I clicked the loop button, and the flags appeared as expected and playback was as expected.

More data...
I jumped into this thread so the music that was posted was not mine. That said, this issue manifests when working in a Part. See attached file (Test.mscz). Working in the top level, looping seems fine. Working in the part, selecting a bar and setting that as the loop causes the 'Loop In' to go to Top and 'Loop Out' to go to End. And, nothing plays. A bunch of other strange disconnects between part and main, but this seems to be the best example. I hope this is more clear.

Attachment Size
Test.mscz 4.46 KB
Priority P0 - Critical

I can confirm glitches involving setting loop within a part as per the example above, although there were no parts in the original score posted.

Frequency Few Many
Reported version 3.0 3.1

Just updated to MuseScore 3.1.0 and this is still happening. I cannot set the Loop in or out in parts.

Frequency Few Many
Severity S2 - Critical S3 - Major
Reported version 3.0 3.2 Mac OS 10.14.6
I have the playback issues as well, the start/end markers will be places at the start of the score, ignores selection. There seems to be no way to move them. It seems the issue at least occurs when playing within a part (split instruments using File/Parts), it seems to work fine if I use the piece with all instruments. Reproduced with two scores, included one consisting of two parts with some random notes.

Attachment Size
Test.mscz 7.71 KB

And another one:
Critical severity, I agree. This leads to a bad experience of the program: this bug was discovered at the beginning of the year, and nine months later, it is still there. The user wants to go back to version 2 because of this, in particular.

Status PR created fixed

Fixed in branch master, commit cf17cf828d

_fix #281866: fix inability to correctly set loop markers in parts

As playback is currently always performed for MasterScore, it would be
logical to store the information about positions of playback cursor and
loop markers in MasterScore rather than individual excerpt scores.
This commit implements this approach and fixes the issue with
inability to set loop markers from parts. Strictly speaking, only
changing Seq::setLoopSelection is absolutely necessary to fix the
issue, the approach with moving pos to MasterScore allows to naturally
avoid incorrect visual feedback due to markers positions information
being not synchronized across scores and ScoreViews.

Fix version