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Undo unpack to new tracks corrupts project


JakobP
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Simple to recreate from a new empty factory template:

1 Create an audio track, set a short cycle and record at least 1 full pass, creating a take folder

2 Unpack to new tracks

3 Undo (I did cmd+z)

4 create new empty software instrument track

Take a look in the mixer, "All" view...

 

1800550348_UndoBug.thumb.gif.3bbe36e46faddbf3ee9be69236472272.gif

Logic Pro 10.5.1 • OS X 10.14.6 • MBP 15" Early 2013 • 2.4 GHz Intel Core i7 • 8GB RAM • iMac 27 Late 2013 • 3.4 GHz Intel Core i5 • 16GB RAM • Focusrite Saffire 6 USB • cheap midi keyboard • Korg NanoKontrol • Roland UM-One mkII • Behringer FCB1010 • Gibson ES335
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Adding a production kit first and then following previous steps gives this mixer here;

Click channel changed to an fx aux, drum stacks main track (and kick in subtrack) is now input channels (!), master fader turned into a bus channel strip, etc...

Mayham.thumb.png.c1fe9790acbbc5ee0a93f10d339e8959.png

Logic Pro 10.5.1 • OS X 10.14.6 • MBP 15" Early 2013 • 2.4 GHz Intel Core i7 • 8GB RAM • iMac 27 Late 2013 • 3.4 GHz Intel Core i5 • 16GB RAM • Focusrite Saffire 6 USB • cheap midi keyboard • Korg NanoKontrol • Roland UM-One mkII • Behringer FCB1010 • Gibson ES335
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Confirmed

 

bug.thumb.gif.fc7c2f6589a072f2268abfc9451db592.gif

It seems that Undoing the Unpacking already causes the corruption, and the full blown effect after creating another instrument is only Logic's attempt to make sense of its confusion.

Christian Obermaier
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Yeah, ugly... :/
Logic Pro 10.5.1 • OS X 10.14.6 • MBP 15" Early 2013 • 2.4 GHz Intel Core i7 • 8GB RAM • iMac 27 Late 2013 • 3.4 GHz Intel Core i5 • 16GB RAM • Focusrite Saffire 6 USB • cheap midi keyboard • Korg NanoKontrol • Roland UM-One mkII • Behringer FCB1010 • Gibson ES335
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Tested now from a blank template from pre 10.5.1, when Click and "Prelisten" was on audio256 and instrument256 respectively, works fine there...

EDIT Tested the old template some more and it got screwed up too, click worked though :D

Edited by JakobP
Logic Pro 10.5.1 • OS X 10.14.6 • MBP 15" Early 2013 • 2.4 GHz Intel Core i7 • 8GB RAM • iMac 27 Late 2013 • 3.4 GHz Intel Core i5 • 16GB RAM • Focusrite Saffire 6 USB • cheap midi keyboard • Korg NanoKontrol • Roland UM-One mkII • Behringer FCB1010 • Gibson ES335
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Can someone on 10.6 confirm ? Both Catalina and Big Sur ideally... :)

PS And even 10.5.1 on Catalina ?

Logic Pro 10.5.1 • OS X 10.14.6 • MBP 15" Early 2013 • 2.4 GHz Intel Core i7 • 8GB RAM • iMac 27 Late 2013 • 3.4 GHz Intel Core i5 • 16GB RAM • Focusrite Saffire 6 USB • cheap midi keyboard • Korg NanoKontrol • Roland UM-One mkII • Behringer FCB1010 • Gibson ES335
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Thanks for confirming, David and Christian :) Stumbled over this just when playing around, and I don't normally use the unpack to new tracks, but it's scary to think that there might be other unknown conditions where this could occur... Not sure if I'll start using templates created pre 10.5 now...

EDIT pre 10.5 templates also problematic, I'll just have to save more frequently, and check if I have click now and then...

Edited by JakobP
Logic Pro 10.5.1 • OS X 10.14.6 • MBP 15" Early 2013 • 2.4 GHz Intel Core i7 • 8GB RAM • iMac 27 Late 2013 • 3.4 GHz Intel Core i5 • 16GB RAM • Focusrite Saffire 6 USB • cheap midi keyboard • Korg NanoKontrol • Roland UM-One mkII • Behringer FCB1010 • Gibson ES335
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is this possibly related to the topic about routings and bus assignments getting messed up discussed here? viewtopic.php?f=1&t=145231 or here viewtopic.php?f=1&t=153767

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  • 4 weeks later...
@JakobP confirmed here on Catalina, Logic 10.6.1 - second master fader was bus 256 and second Stereo Out was input 5-6. Nasty for sure.

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  • 1 month later...
Stumbled over that one lately... :(

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  • 2 months later...
  • 3 months later...

It seems this bug doesn't appear only with take folders, it also happens when using the option "Create Track" in "Overlapping Track Recordings"...

EDIT I guess it's still not fixed in 10.7 ?

EDIT2 Undoing Open Movie (and extract the audio track) also causes this bug to appear, It's also not needed to create a software inst track, adding a Channel Eq (or any plugin or track) will create the havoc...

1413231983_UndoRecording.thumb.gif.22752996febe8d2a26a7f59f0743c115.gif

1265759953_UndoOpenMovie.thumb.gif.f4fd211e7da5c1c7b7637af14d98e721.gif

Logic Pro 10.5.1 • OS X 10.14.6 • MBP 15" Early 2013 • 2.4 GHz Intel Core i7 • 8GB RAM • iMac 27 Late 2013 • 3.4 GHz Intel Core i5 • 16GB RAM • Focusrite Saffire 6 USB • cheap midi keyboard • Korg NanoKontrol • Roland UM-One mkII • Behringer FCB1010 • Gibson ES335
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  • 1 month later...
Anybody found a sureshot way to avoid this mess?

Never use the "Undo" command when Logic creates new tracks. You can delete the new tracks instead.

Logic Pro 10.5.1 • OS X 10.14.6 • MBP 15" Early 2013 • 2.4 GHz Intel Core i7 • 8GB RAM • iMac 27 Late 2013 • 3.4 GHz Intel Core i5 • 16GB RAM • Focusrite Saffire 6 USB • cheap midi keyboard • Korg NanoKontrol • Roland UM-One mkII • Behringer FCB1010 • Gibson ES335
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