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IDProjectCategoryView StatusLast Update
0008292ardourbugspublic2022-10-25 21:38
Reporterunfa Assigned Topaul  
Status resolvedResolutionfixed 
PlatformArchOSLinuxOS Version(any)
Product Version6.0 
Summary0008292: Some MIDI regions become empty after reloading a session
DescriptionThis is a very old bug that I've probably reported before, but even I can't find that report.
So here we go again!

After closing and reloading an Ardour session, some MIDI regions become empty - user has to manually recreate them or copy from other places.
If the region was unique - user is out of luck :(

This is one of the worse types of MIDI-related bugs because it introduces data loss and corrupts user work.



2020-07-09 08:47


Screenshot_20200709_104305.png (46,331 bytes)   
Screenshot_20200709_104305.png (46,331 bytes)   


2020-07-09 10:01

reporter   ~0024659

If I understand it correctly the user "thekoala" suggested in a forum post that this is a graphical glitch and there is data in the empty regions. He says that resizing the midi track makes midi data reappear.

Is this true with the issue you are seeing ?


2020-07-09 10:30

reporter   ~0024661

Just had this one happen. Copy a range of a midi clip and paste into another track. All the notes disappear because the region displayed in the new clip on the new track is calculated from the start of the midi clip and not the range start of the selected midi clip.


2020-07-09 10:57

reporter   ~0024662


I don't think so. If it'd be a purely visual issue the notes would still play. I can resize or edit an effected MIDI region and it'll not get the notes back.


I think it's a different issue -what I'm reporting happens strictly when you save and close your session, and open it again. Yes, the regions were duplicates before, but the breakage only occurs after reloading the session.


2020-07-11 03:28

administrator   ~0024687

need a recipe for this. never had it happen during any of the testing i've done working on MIDI ....


2022-10-25 21:38

administrator   ~0026700

fixed in b0c162879d484

Issue History

Date Modified Username Field Change
2020-07-09 08:47 unfa New Issue
2020-07-09 08:47 unfa Tag Attached: Midi
2020-07-09 08:47 unfa File Added: Screenshot_20200709_104305.png
2020-07-09 10:01 mhartzel Note Added: 0024659
2020-07-09 10:30 muzikermammoth Note Added: 0024661
2020-07-09 10:57 unfa Note Added: 0024662
2020-07-11 03:28 paul Note Added: 0024687
2022-10-25 21:38 paul Assigned To => paul
2022-10-25 21:38 paul Status new => resolved
2022-10-25 21:38 paul Resolution open => fixed
2022-10-25 21:38 paul Note Added: 0026700