PCB turns black after saving

[mtribiere]

Environment

PCB2Blender v2.4 Blender 3.4.1 Kicad 7.0.1

Step to reproduce

• Export a PCB from Kicad
• Load it into Blender
• Save the scene to a .blend file
• Close Blender
• Reopen the scene

What happens

The PCB in the scene turn completely black

What should happen

The PCB should appear normally

[mtribiere]

Probably a duplicate of #15, since the workaround worked too.

Summary:

• Before opening the scene, disable/enable the add-on
• Then open the scene
• Voilà the textures are back

[30350n]

Hm this is odd, this shouldn't be happening in 3.4. Before disabling/enableing the addon, are the any errors in the system console? If not, can you share a screenshot of the node tree?

[30350n]

Also, here is a prerelease of the addon for Blender 3.5.1 (there is a bug in 3.5.0 which made the addon hard crash blender). I'd be curious if you get the same behavior there.

[mtribiere]

There is indeed an error in the system console before I load my scene:

Read prefs: C:\Users\Matthieu\AppData\Roaming\Blender Foundation\Blender\3.4\config\userpref.blend
Traceback (most recent call last):
  File "C:\Program Files\Blender Foundation\Blender 3.4\3.4\scripts\modules\addon_utils.py", line 333, in enable
    mod = __import__(module_name)
  File "C:\Users\Matthieu\AppData\Roaming\Blender Foundation\Blender\3.4\scripts\addons\pcb2blender_importer\__init__.py", line 22, in <module>
    add_dependencies(deps, no_extra_deps=True)
  File "C:\Users\Matthieu\AppData\Roaming\Blender Foundation\Blender\3.4\scripts\addons\pcb2blender_importer\blender_addon_utils\register.py", line 78, in add_dependencies
    if not importlib.util.find_spec(module):
AttributeError: module 'importlib' has no attribute 'util'

[mtribiere]

Just installed and tried on Blender 3.5.1, I can confirm the pre-release fixed the issue

[30350n]

Ah yeah the weird importlib bug, I fixed that in the 3.5 version. Maybe I should backport that to 3.4 ...

[mtribiere]

Maybe open an issue in Blender? Must be crowded place though

[30350n]

That's not really a Blender bug, more of a weird python behavior. (It's my code that's causing the issue.)

[mtribiere]

Make sense, I leave the issue open then so you can close it with your commit

[30350n]

This is fixed in the v2.6 release.