Normal in your case, you have a input file at 20 fps and you want an output file at 25 fps. Try to update your version of Openshot and MLT too.
First upgrade to the last version 1.4.2. See here : https://answers.launchpad.net/openshot/+faq/1850 Secondly upgrade your version of MLt : See here : https://answers.launchpad.net/openshot/+faq/1861 -- You received this bug notification because you are a member of OpenShot Bugs, which is subscribed to OpenShot Video Editor. https://bugs.launchpad.net/bugs/630649 Title: Exporting a different frame-rate messes up IN and OUT frames Status in OpenShot Video Editor: Fix Released Bug description: When editing a video in OpenShot using a certain frame-rate, the export does not work correctly if you are exporting to a different frame-rate. For example, if my default profile is NTSC (i.e. 29.97 fps) and I export to PAL (i.e. 25 fps), all of the IN and OUT points are incorrect, and the entire project is messed up. To manage notifications about this bug go to: https://bugs.launchpad.net/openshot/+bug/630649/+subscriptions -- Mailing list: https://launchpad.net/~openshot.bugs Post to : [email protected] Unsubscribe : https://launchpad.net/~openshot.bugs More help : https://help.launchpad.net/ListHelp

