Description: Create a new project and add several clips to the timeline (seamless). Export the complete project and export it clip-by-clip. Concatenate the clip-by-clip version using ffmpeg (ffmpeg -f concat -i <fileslist.txt> -c copy <concatenated.mp4>). Compare the complete project-render and the concatenated one: the latter one is shorter, missing exactly one frame per clip (you can also compare the length of the rendered clips and the original ones it you use them completely). Reason why this is a bug: This behaviour is problematic if you render your project's video split in several parts (e.g. to because of render time or memory usage) and merge it with the project's audio afterwards, with the audio rendered completely in one step.
Please try with the Kdenlive_Nightly_Appimage https://binary-factory.kde.org/job/Kdenlive_Nightly_Appimage_Build/lastSuccessfulBuild/artifact/ Would be interesting to know if this is solved.
It seems that this report is related to a very old unmaintained version. Please test with the latest version (20.12.3 at the moment, https://kdenlive.org/en/download/) and close this report if it is not relevant anymore.
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!