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IDProjectCategoryView StatusLast Update
0006435ardourbugspublic2020-05-08 19:43
Reportertnaugle Assigned ToBenLoftis  
PrioritynormalSeverityminorReproducibilityhave not tried
Status feedbackResolutionopen 
Product VersionMixbus 3.0 
Summary0006435: International characters in track names cause tracks to not appear in mixer when session is reopened
DescriptionSeen on OSX

User created a session and imported files. After closing and reopening the session, some of the tracks no longer show up in the Mixer but they do show in the editor.

"I hopefully have good news. In the morning I do my project with my Linux-Laptop and all was correct and ok. So I am looking again on my Macs project and at least I changed one point. There were two tracks named „Fläche Carpet.wav“ and „Fläche Jupiter.wav“. Pleas look at the letter „ä“! I changed this to „Flaeche Carpet.wav“ and „Flaeche Jupiter.wav“ , did the project again (import all files again in a new project) and yes! all ok!!!
So the problem maybe only on Macs is the letter „ä,ö,ü…“! Maybe this helps."
TagsNo tags attached.


2015-07-14 21:21


2015-07-14 21:22


2015-07-23 15:31



2015-07-23 15:35

developer   ~0016937

unresolved: mac32, created new session. made new track, name of track contained International character. also all mix busses and the master disappeared from mix window (mixbus check boxes=checked on). error msg: insufficient ports... and UI draw issue:see image.


2015-07-23 15:46

developer   ~0016938

To get umlauted characters on an English keyboard on OSX, hold down OPTION and push ‘u’. Release OPTION, then type the desired base letter (a, o, u, A, O, or U).

On windows Hold Left ALT and type 0252 on the num pad


2015-07-23 16:49

administrator   ~0016939

Last edited: 2015-07-23 16:52

I was able to reproduce this with Mixbus3 only (not Ardour4.1) on OSX.

The first Track name with an Umlaut in the name is not displayed and all tracks following it are hidden in the mixer.

NB. this is about track names (not file names). The only relation is that the file-name is used as default track name. Simply changing the track name solves the issues. The actual filename can remain UTF8. It's probably a bug in the Harrison Mixerstrip code


2015-07-23 16:54

administrator   ~0016940

see also


2015-09-19 17:23

administrator   ~0017326

possible fix/band-aid in Ardour 4.2-379-gc829c10


2015-09-22 22:25

administrator   ~0017338

I can no longer reproduce this with Mixbus 3.0.1970


2015-09-22 22:26

administrator   ~0017339

please confirm fix/workaround


2016-02-02 04:35

developer   ~0017865

Last edited: 2016-02-02 04:47

I cannot reproduce issue using Mixbus interim 3.0.3146(64-bit), on Mac OSX 10.6.8


2020-05-08 14:12

reporter   ~0024102

I can reproduce this with the latest git version caf057f06dbe307e4a53580665b0f2166fe8a2c5 on Debian testing (Bullseye).

I made a very small session which reproduces the problem. Whenever I use "2 Tenor Verleih uns Frieden gnädiglich" as a track name the track and all tracks below stop appearing correctly in the connection manager. When I replace "ä" by "ae" it works as expected. (590,953 bytes)


2020-05-08 14:13

reporter   ~0024103

I made a screenshot of the (large) project where I noticed that bug.
missing-names-mixer.png (31,859 bytes)   
missing-names-mixer.png (31,859 bytes)   


2020-05-08 14:51

administrator   ~0024106

OK. so this is a related but different issue (connection manager, not mixer).

@Alexander are you also on MacOS? CoreAudio backend? It seems to be due to port-naming.


2020-05-08 19:43

reporter   ~0024108

I'm on Debian testing (Bullseye). Should I make a new bugreport for this?

Issue History

Date Modified Username Field Change
2015-07-14 21:21 tnaugle New Issue
2015-07-14 21:21 tnaugle File Added: Bildschirmfoto 2015-07-09 um 23.27.23.png
2015-07-14 21:22 tnaugle File Added: Bildschirmfoto 2015-07-09 um 23.27.38.png
2015-07-22 21:43 tnaugle Status new => assigned
2015-07-22 21:43 tnaugle Assigned To => matufts
2015-07-22 21:44 tnaugle Status assigned => feedback
2015-07-23 15:31 matufts File Added: Screen shot 2015-07-23 at 10.11.24 AM.png
2015-07-23 15:35 matufts Note Added: 0016937
2015-07-23 15:46 tnaugle Note Added: 0016938
2015-07-23 15:46 tnaugle Assigned To matufts =>
2015-07-23 15:47 tnaugle Status feedback => confirmed
2015-07-23 16:49 x42 Note Added: 0016939
2015-07-23 16:52 x42 Note Edited: 0016939
2015-07-23 16:52 tnaugle Status confirmed => assigned
2015-07-23 16:52 tnaugle Assigned To => BenLoftis
2015-07-23 16:54 x42 Note Added: 0016940
2015-09-19 17:23 x42 Note Added: 0017326
2015-09-22 22:25 x42 Note Added: 0017338
2015-09-22 22:26 x42 Note Added: 0017339
2015-09-22 22:26 x42 Status assigned => feedback
2016-02-02 04:35 timbyr Note Added: 0017865
2016-02-02 04:47 timbyr Note Edited: 0017865
2020-05-08 14:12 Alexander File Added:
2020-05-08 14:12 Alexander Note Added: 0024102
2020-05-08 14:13 Alexander File Added: missing-names-mixer.png
2020-05-08 14:13 Alexander Note Added: 0024103
2020-05-08 14:51 x42 Note Added: 0024106
2020-05-08 19:43 Alexander Note Added: 0024108