Bug 407268 - Adding keyframe to Postion and Zoom effect causes black screen in Project Monitor
Summary: Adding keyframe to Postion and Zoom effect causes black screen in Project Mon...
Status: RESOLVED FIXED
Alias: None
Product: kdenlive
Classification: Applications
Component: Video Effects & Transitions (show other bugs)
Version: 19.04.1
Platform: Arch Linux Linux
: NOR grave
Target Milestone: ---
Assignee: Vincent PINON
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-05-06 12:42 UTC by inQuis
Modified: 2019-05-24 13:07 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:
fritzibaby: timeline_corruption+


Attachments
Project monitor turned black after adding keyframe (136.52 KB, image/png)
2019-05-06 12:42 UTC, inQuis
Details

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Description inQuis 2019-05-06 12:42:56 UTC
Created attachment 119869 [details]
Project monitor turned black after adding keyframe

SUMMARY

When adding a keyframe to the Position and Zoom effect the Project Monitor turns black.

STEPS TO REPRODUCE
1. Drag clip into timeline
2. Add Position and Zoom effect
3. Choose point within clip and hit + button to add a keyframe

OBSERVED RESULT

Project monitor turns black (red boundary box and target are present however)

EXPECTED RESULT

Clip with added effect shown in project monitor

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: Ubuntu 18.04.2 LTS
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 5.51.0
Qt Version: 5.11.2

ADDITIONAL INFORMATION

I've tried this on 2 different computers (both running Ubuntu 18.04.2 LTS) with Kdenlive versions 19.04.0, 19.04.1-37e7f8a and 19.04.1-2607f52 (AppImage)
Comment 1 inQuis 2019-05-06 12:46:23 UTC
Sometimes when disabling the effect and adding a second version of the Position and Zoom effect I can get it to display right, behaviour seems random though and hard to reproduce consistently.
Comment 2 khriss cortez 2019-05-20 20:42:22 UTC
Hi guys, 

I have the same situation when using Position and Zoom, the project monitor screen just turns BLACK. Issue is ALWAYS reproducible in Arch Linux (KDE Plasma) and Windows 10. I have troubleshooted a lot but no workaround as of yet. 

- Kdenlive version: 19.04.0
- nVidia 1080 ti, Driver 430.64
Comment 3 emohr 2019-05-22 17:53:13 UTC
Issue should be fixed.
Please try with the current Kdenlive AppImage version 19.04.1b  https://files.kde.org/kdenlive/release/
Comment 4 khriss cortez 2019-05-23 21:59:38 UTC
Hi guys, 

I've just tested with several videos in both Arch/Plasma and Windows 10 (OSs fully updated) with Kdenlive 19.04.1 and the ISSUE PERSISTS, it has not been fixed yet. In Windows 10 at least the project screen is visible but in the final rendered video it only shows a white screen on the part the Position and Zoom effect has been applied. 

Please dig deeper on that, thanks in advance!
PD. I troubleshooted by deleting the Kdenliverc and cache video configuration but it DIDN'T help at all.
Comment 5 inQuis 2019-05-24 13:07:38 UTC
(In reply to emohr from comment #3)
> Issue should be fixed.
> Please try with the current Kdenlive AppImage version 19.04.1b 
> https://files.kde.org/kdenlive/release/

For me (Ubuntu 18.04.2 LTS) it seems to be fixed! Great work, thanks!!