KiCad's Project manager freezes when double clicking on -cache.lib file

It looks like @eSlavko just fond a bug in KiCad V5 in this thread:

I tried it and can confirm it is very easy to reproduce.

  1. Open a project in the project manager.
  2. Double click on the [project]-cache.lib file.
  3. Project manager freezes.

A “Loading Symbol Libraries” dialog is opened, but it makes no progress, and the dialog can not be closed normally.

As eSlavko is not very experienced with KiCad I am willing to make a bug report for this on gitlab (Already checked, I did not see this as an open issue), but because Linux Mint is not “officially supported” It would be nice to have some confirmation (preferably different OS’es) before I do so.

Application: KiCad
Version: 5.1.8-db9833491~87~ubuntu20.04.1, release build
Libraries:
wxWidgets 3.0.4
libcurl/7.68.0 OpenSSL/1.1.1f zlib/1.2.11 brotli/1.0.7 libidn2/2.2.0 libpsl/0.21.0 (+libidn2/2.2.0) libssh/0.9.3/openssl/zlib nghttp2/1.40.0 librtmp/2.3
Platform: Linux 5.4.0-53-generic x86_64, 64 bit, Little endian, wxGTK
Build Info:
wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+ 3.24
Boost: 1.71.0
OpenCASCADE Community Edition: 6.9.1
Curl: 7.68.0
Compiler: GCC 9.3.0 with C++ ABI 1013

Build settings:
USE_WX_GRAPHICS_CONTEXT=OFF
USE_WX_OVERLAY=ON
KICAD_SCRIPTING=ON
KICAD_SCRIPTING_MODULES=ON
KICAD_SCRIPTING_PYTHON3=ON
KICAD_SCRIPTING_WXPYTHON=ON
KICAD_SCRIPTING_WXPYTHON_PHOENIX=ON
KICAD_SCRIPTING_ACTION_MENU=ON
BUILD_GITHUB_PLUGIN=ON
KICAD_USE_OCE=ON
KICAD_USE_OCC=OFF
KICAD_SPICE=ON

I can confirm that it also happening on Ubuntu 20.04.

Edit Note: No issues on nightly.

Is it this?

No repro on 5.1.8/Win64
Kicad loads libraries, then “libary not found in symbol library table” error window appears.

Thanks for posting bug. I use xubuntu 20.04.

Tnx for posing your OS.
I was wondering if you were using Linux too.
Current count is 4 affected Linux users, and 1 Windows user (fred4u) who is not affected.
I also already added my findings to the issue hildogjr made on gitlab, where the official bugs are tracked.

No problem. But I uninstall all versions except 5.99 so from now can report issues on that.
Allready find the problem. will open new thread.

Can confirm this on macOS 10.15.4 64 bit Catalina MacBook Pro, KC 5.1.8.
I believe, this libraries are from updatet KC 5.0.x.xx something
I deleted this defective(?) libraries, build my own new one, and re-organice the Library Reference for each not referenced part.
But, it’s not ok after that. Every lib shown and started from project-manager crashes KiCad …