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[Erich Eickmeyer <1877806@xxxxxxxxxxxxxxxxxx>]

I was able to reproduce this with a plugin from LSP Plugins. That said,
the Ardour team is on the verge of releasing Ardour 6.0, and is not
interested in fixing bugs in 5.12. This means this bug probably will see
no response, but I will check with the team and report back.

** No longer affects: calf (Ubuntu)

** Changed in: ardour (Ubuntu)
   Importance: Undecided => Medium

** Changed in: ardour (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1877806

Title:
  ardour crashes when saving lv2 plugin preset

Status in ardour package in Ubuntu:
  Confirmed

Bug description:
  The few lv2 plugins I have tried all crash ardour when I click on
  "save" to save the preset. Clicking Add to create a new plugin doesn't
  crash, but it also does not save the preset.  If you load a plugin
  preset already created and then click save, you end up wiping out the
  contents of the preset direcoty in ~/.lv2.  The .ttl files are deleted
  and you end up with an empty directoy.  The only thing printed on the
  console when this happens is this:

  
  CALF DEBUG: instance 0x55c00d102860 data 0x55c01ca1cf10
  CALF DEBUG: calf 0x7f8d31f7b0f0 cpi 0x7f8d31783ca0
  Segmentation fault (core dumped)

  AFAIK, teh preset add and save functions work for ladspa plugins.

  -Don

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ardour 1:5.12.0-3ubuntu4
  ProcVersionSignature: Ubuntu 5.4.0-29.33-lowlatency 5.4.30
  Uname: Linux 5.4.0-29-lowlatency x86_64
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: XFCE
  Date: Sat May  9 21:39:09 2020
  InstallationDate: Installed on 2020-04-26 (13 days ago)
  InstallationMedia: Ubuntu-Studio 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  SourcePackage: ardour
  UpgradeStatus: No upgrade log present (probably fresh install)

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