Regression: Sequencer assert on adding fade to any strip #120155

New Issue

John Kiril Swenson · 2024-04-02T07:03:36+02:00

2024-04-02 07:03:36 +02:00

System Information
Operating system: Linux-6.8.2-arch2-1-x86_64-with-glibc2.39 64 Bits, X11 UI
Graphics card: Mesa Intel(R) UHD Graphics 630 (CFL GT2) Intel 4.6 (Core Profile) Mesa 24.0.3-arch1.2

Blender Version
Broken: version: 4.2.0 Alpha, branch: main, commit date: 2024-04-01 23:26, hash: 03d728e281aa
Worked: 4.1.1

Short description of error
Attempting to add any kind of fade to any sequencer strip will result in a Blender crash on developer builds due to an assert.

Note for developers:

BLI_assert failed: source/blender/blenkernel/intern/fcurve.cc:1947, BKE_fcurve_deduplicate_keys(), at 'fcu->bezt'
  this function only works with regular (non-sampled) FCurves

Exact steps for others to reproduce the error

Open a Sequencer window.
Add any strip.
Right-click the strip and try to add any Fade.
Failed assert causes Blender to crash.

**System Information** Operating system: Linux-6.8.2-arch2-1-x86_64-with-glibc2.39 64 Bits, X11 UI Graphics card: Mesa Intel(R) UHD Graphics 630 (CFL GT2) Intel 4.6 (Core Profile) Mesa 24.0.3-arch1.2 **Blender Version** Broken: version: 4.2.0 Alpha, branch: main, commit date: 2024-04-01 23:26, hash: `03d728e281aa` Worked: 4.1.1 **Short description of error** Attempting to add any kind of fade to any sequencer strip will result in a Blender crash on developer builds due to an assert. Note for developers: ``` BLI_assert failed: source/blender/blenkernel/intern/fcurve.cc:1947, BKE_fcurve_deduplicate_keys(), at 'fcu->bezt' this function only works with regular (non-sampled) FCurves ``` **Exact steps for others to reproduce the error** 1. Open a Sequencer window. 2. Add any strip. 3. Right-click the strip and try to add any Fade. Failed assert causes Blender to crash.

John Kiril Swenson added the

labels 2024-04-02 07:03:37 +02:00

John Kiril Swenson commented

2024-04-02 07:13:01 +02:00

Tested this with the same build of 4.2.0 from Blender's daily builds and the regression was not present, so this seems to be an issue with my dev environment. Apologies for submitting an issue prematurely, closing.

EDIT: I realize now that this was an assert error that did not show up in release builds, thanks @ChengduLittleA

Tested this with the same build of 4.2.0 from Blender's daily builds and the regression was not present, so this seems to be an issue with my dev environment. Apologies for submitting an issue prematurely, closing. EDIT: I realize now that this was an assert error that did not show up in release builds, thanks @ChengduLittleA

John Kiril Swenson closed this issue

2024-04-02 07:13:04 +02:00

Blender Bot added

and removed

labels 2024-04-02 07:13:06 +02:00

YimingWu commented

2024-04-02 07:35:51 +02:00

Huh I can actually reproduce on my latest compilation of blender. Looks like an assertion error, so it might not be triggering in Release builds