https://bugzilla.redhat.com/show_bug.cgi?id=2420140
Bug ID: 2420140 Summary: FBX exporter does not work Product: Fedora Version: 43 Hardware: x86_64 OS: Linux Status: NEW Component: blender Severity: high Assignee: luya_tfz@thefinalzone.net Reporter: snuutti@protonmail.com QA Contact: extras-qa@fedoraproject.org CC: code@musicinmybrain.net, design-devel@lists.fedoraproject.org, epel-packagers-sig@lists.fedoraproject.org, luya_tfz@thefinalzone.net, negativo17@gmail.com Target Milestone: --- Classification: Fedora
Blender's FBX export functionality no longer works after upgrading to Fedora 43. When attempting to export to the FBX format, an error popup is shown instead. This issue doesn't require a specific blender file to happen, it happens even with just the default unchanged scene. This happens on both of my machines, both with fresh Blender installations.
Reproducible: Always
Steps to Reproduce: 1. Open Blender 2. Go to File->Export->FBX 3. Click Export FBX 4. Notice the error popup Actual Results: A popup displaying a bunch of Python tracebacks is shown.
Expected Results: Create the FBX file of the 3D model.
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
--- Comment #1 from snuutti@protonmail.com --- Created attachment 2118023 --> https://bugzilla.redhat.com/attachment.cgi?id=2118023&action=edit FBX exporter traceback
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
Luya Tshimbalanga luya_tfz@thefinalzone.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Keywords| |Upstream Status|NEW |ASSIGNED
--- Comment #2 from Luya Tshimbalanga luya_tfz@thefinalzone.net --- I confirm the reproduction of the traceback which seems affecting all operating systems running version 5.0.0. according to upstream bug report: https://projects.blender.org/blender/blender/issues/151290
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
Kitlith kitlith@kitl.ing changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |kitlith@kitl.ing
--- Comment #3 from Kitlith kitlith@kitl.ing --- I suspect that the upstream bug report is not related. The upstream bug has a specific cause (can't export when in X state), with tracebacks of the form `AttributeError: 'NoneType' object has no attribute 'nodes'`. This bug produces tracebaks of the form `AttributeError: 'ExportFBX' object has no attribute 'path_mode'`, I can trigger this bug with the default blender scene, and it also causes the FBX export settings to be absent when you are selecting where to export to.
Workaround: I was able to export an FBX using Blender 5.0.0 from the flathub flatpak, instead of Blender 5.0.1 from the (non-flatpak) fedora package repository.
(This workaround is another reason why I suspect that this is not an upstream bug.)
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
Luya Tshimbalanga luya_tfz@thefinalzone.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Flags| |needinfo?(snuutti@protonmai | |l.com)
--- Comment #4 from Luya Tshimbalanga luya_tfz@thefinalzone.net --- The bug also affected Windows version as highlighted on comment #2. Upstream provided a patch which resolved the issue. The scratch build is available at the time of writing for testing: https://koji.fedoraproject.org/koji/taskinfo?taskID=140999365
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
snuutti@protonmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Flags|needinfo?(snuutti@protonmai | |l.com) |
--- Comment #5 from snuutti@protonmail.com --- I tried the scratch build on my system but nothing's changed, I'm still getting the same list of errors. I've also tested the latest Blender version 5.0.1 on Ubuntu 24.04 and Windows 10, and neither system has this issue which also makes me believe this is unrelated to the upstream bug. The workaround of using the Blender flatpak won't work for me as my use case requires Blender's Python API.
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
--- Comment #6 from Luya Tshimbalanga luya_tfz@thefinalzone.net --- Could you show a screenshot of that error? Try to clean install Fedora Blender with https://bodhi.fedoraproject.org/updates/FEDORA-2026-71de399b02 and enable updates-testing repository.
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
--- Comment #7 from Luya Tshimbalanga luya_tfz@thefinalzone.net --- Note that version includes both MaterialX and manifold3d.
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
--- Comment #8 from snuutti@protonmail.com --- Created attachment 2121920 --> https://bugzilla.redhat.com/attachment.cgi?id=2121920&action=edit Screenshot of error
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
--- Comment #9 from snuutti@protonmail.com --- I've tried a clean install with the update, no difference.
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
--- Comment #10 from Luya Tshimbalanga luya_tfz@thefinalzone.net --- It turned out the issue is the compatibility between Blender Python API and Python 3.14. While it is possible to use Python 3.11, other python packaged componenet line numpy are built on Python 3.14 on both Fedora 43 and onward which increases the complexity of the maintenance. Upstream is willing to address the issue as highlighted on https://projects.blender.org/blender/blender/issues/152809#issuecomment-1813...
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
Luya Tshimbalanga luya_tfz@thefinalzone.net changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |marshmallowboy719@gmail.com
--- Comment #11 from Luya Tshimbalanga luya_tfz@thefinalzone.net --- *** Bug 2452307 has been marked as a duplicate of this bug. ***
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
Luya Tshimbalanga luya_tfz@thefinalzone.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Flags| |needinfo?(snuutti@protonmai | |l.com)
--- Comment #12 from Luya Tshimbalanga luya_tfz@thefinalzone.net --- Could you test the latest update 5.1.1 which should fix this issue? Thanks.
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
Fedora Update System updates@fedoraproject.org changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |MODIFIED
--- Comment #13 from Fedora Update System updates@fedoraproject.org --- FEDORA-2026-87f3740812 (blender-5.2.1-1.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-87f3740812
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
Fedora Update System updates@fedoraproject.org changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |MODIFIED
--- Comment #13 from Fedora Update System updates@fedoraproject.org --- FEDORA-2026-87f3740812 (blender-5.2.1-1.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-87f3740812
--- Comment #14 from Fedora Update System updates@fedoraproject.org --- FEDORA-2026-d15af8c066 (blender-5.2.1-1.fc45) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-d15af8c066
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
Fedora Update System updates@fedoraproject.org changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|MODIFIED |ON_QA
--- Comment #15 from Fedora Update System updates@fedoraproject.org --- FEDORA-2026-87f3740812 has been pushed to the Fedora 44 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-87f3740812` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-87f3740812
See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
--- Comment #16 from Fedora Update System updates@fedoraproject.org --- FEDORA-2026-d15af8c066 has been pushed to the Fedora 45 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-d15af8c066` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-d15af8c066
See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
Fedora Update System updates@fedoraproject.org changed:
What |Removed |Added ---------------------------------------------------------------------------- Fixed In Version| |blender-5.2.1-1.fc44 Status|ON_QA |CLOSED Resolution|--- |ERRATA Last Closed| |2026-09-08 01:11:09
--- Comment #17 from Fedora Update System updates@fedoraproject.org --- FEDORA-2026-87f3740812 (blender-5.2.1-1.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report.
https://bugzilla.redhat.com/show_bug.cgi?id=2420140
Fedora Update System updates@fedoraproject.org changed:
What |Removed |Added ---------------------------------------------------------------------------- Fixed In Version|blender-5.2.1-1.fc44 |blender-5.2.1-1.fc44 | |blender-5.2.1-1.fc45
--- Comment #18 from Fedora Update System updates@fedoraproject.org --- FEDORA-2026-d15af8c066 (blender-5.2.1-1.fc45) has been pushed to the Fedora 45 stable repository. If problem still persists, please make note of it in this bug report.
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