https://bugs.kde.org/show_bug.cgi?id=414070

            Bug ID: 414070
           Summary: Random movement in rendered output on Position-zoom
                    effect when importing keyframes from Auto Mask
           Product: kdenlive
           Version: 19.08.3
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: critical
          Priority: NOR
         Component: Effects & Transitions
          Assignee: vpi...@kde.org
          Reporter: inquis...@gmail.com
  Target Milestone: ---

Created attachment 123869
  --> https://bugs.kde.org/attachment.cgi?id=123869&action=edit
Screenshot of result in preview window and frame from rendered output

SUMMARY
When importing the keyframes from Auto Mask and applying it to another effect,
such as Position and Zoom, it shows the expected result in the preview window,
however in de rendered version movement is all over the place and seems random

STEPS TO REPRODUCE
1. Insert a video clip into timeline and add the Auto Mask effect
2. Select a feature to follow and hit Analyse
3. Click on Copy to clipboard button next to tracking data
4. Insert another clip or still image into a higher track of the timeline
5. Add a keyframable affect, for instance the Position and Zoom effect to this
clip/image
6. Click Options, Import keyframes from clipboard
7. Choose either Geometry or Position and click OK
8. Observe result in preview window: movement as expected
9. Render to file and observe random movement

OBSERVED RESULT
In rendered output: random movement

EXPECTED RESULT
Proper movement as shown in preview window

SOFTWARE/OS VERSIONS
Linux, Ubuntu 18.04.3 LTS
KDenlive versions 19.08.2b-x86_64, 19.08.3-x86_64, 19.11.80-c827054-x86_64,
19.11.80-d5a078a-x86_64, 20.03.70-5cb2e98-x86_64

ADDITIONAL INFORMATION
Part of keyframes that where copied to the clipboard:
231/205:760x469:0;1=231/205:760x469;2=230,944/205,121:760x469;3=236,194/206,808:760x469;4=243,86/211,586:760x469;5=258,06/214,886:760x469;6=273,242/216,523:760x469;7=276,18/217,304:760x469;8=268,103/216,765:760x469;9=262,817/212,765:760x469;10=263,817/209,108:760x469;11=267,876/207,52:760x469;12=267,879/204,827:760x469;13=265,384/201,694:760x469;14=266,704/205,049:760x469;15=263,791/209,329:760x469;16=256,612/209,937:760x469;17=249,456

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