Issues

• macOS: melt occasionally never exits after the avformat consumer thread is gone

  mltframework/mlt#1333 · Filter by author tydude001 opened on Oct 1, 2026

• _unique_id is assigned with a non-atomic increment, so concurrent services can share an id

  mltframework/mlt#1319 · Filter by author iDoMeteor opened on Sep 28, 2026 · v7.44.0
  2

• Crash: avformat decoder cache (size 4) evicts state another thread is still decoding with

  mltframework/mlt#1318 · Filter by author iDoMeteor opened on Sep 28, 2026 · v7.42.0
  1

• Crash: unguarded lazy init in loader, service cache and avformat when producers open on several threads

  mltframework/mlt#1317 · Filter by author iDoMeteor opened on Sep 28, 2026 · v7.44.0
  2

• mix transition allocates 9.2 MB per instance

  mltframework/mlt#1316 · Filter by author iDoMeteor opened on Sep 28, 2026 · v7.44.0
  5

• Segmentation fault during render from Kdenlive

  confirmedcrashworkaround
  mltframework/mlt#1200 · Filter by author pettinen opened on Jan 29, 2026
  6

• Audio muted when doing stutter loops

  mltframework/mlt#1168 · Filter by author Mertekz opened on Nov 1, 2025
  3

• There may be an error when disconnecting a filter service from the field

  mltframework/mlt#1058 · Filter by author wangguangyue opened on Dec 11, 2024
  1

• Filter "affine" + Transition "luma" Out of the wrong picture, bug

  mltframework/mlt#1056 · Filter by author xiaoxixiaoxi opened on Dec 4, 2024
  1

• Audio not synchronized

  mltframework/mlt#984 · Filter by author exceptiondc opened on May 14, 2024

• Discovered a bug regarding image size scaling and rotation

  mltframework/mlt#970 · Filter by author w-wj-07 opened on Jan 19, 2024

• Composite + Colour + Thread will render error

  mltframework/mlt#920 · Filter by author Adonis-Song opened on May 26, 2023

• Remote URLs not working for jpeg files

  workaround
  mltframework/mlt#829 · Filter by author tslater opened on Oct 5, 2022
  3

• Build failure for mingw 32 bit

  mltframework/mlt#809 · Filter by author Biswa96 opened on Jun 30, 2022

• avformat: lowres does not work

  mltframework/mlt#795 · Filter by author Tjoppen opened on May 25, 2022
  3

• melt playing window stopped refresh after resized

  mltframework/mlt#783 · Filter by author chengyingyuan opened on Mar 25, 2022
  2

• Timewarp Producer Issue: Ignores framerate settings in mlt_profile, reports wrong frame on callback.

  mltframework/mlt#769 · Filter by author Eoin-ONeill-Yokai opened on Feb 10, 2022
  8

• Memory leaks in melt CLI with and without input

  confirmed
  mltframework/mlt#745 · Filter by author Tjoppen opened on Oct 28, 2021
  4

• Library FFTW's fftw_plan_dft_r2c_1d is not thread safe.

  mltframework/mlt#743 · Filter by author andre-caldas opened on Oct 26, 2021
  1

• Color shift after first frame of output when using two composite transitions

  confirmedworkaround
  mltframework/mlt#623 · Filter by author MaxPower15 opened on Nov 25, 2020
  4

• missing video in transition with sdl2 viewer

  mltframework/mlt#607 · Filter by author bremner opened on Sep 7, 2020

• Noto color emoji font not rendering

  mltframework/mlt#596 · Filter by author hernantz opened on Jul 17, 2020
  2

• Crash using the tremolo audio effect

  mltframework/mlt#595 · Filter by author faridosc opened on Jul 14, 2020
  8

• Crash in qtblend filter

  mltframework/mlt#593 · Filter by author rlalik opened on Jul 6, 2020
  4

  

• Rendering artifacts when using transitions with Movit

  mltframework/mlt#578 · Filter by author faridosc opened on Jun 3, 2020
  5