Ok so it looks like the issue with the duration is bug 925238 in kazam which is fixed in trunk.
I was using limblt 0.7.6 ii libmlt4 0.7.6+git20111 multimedia framework (runtime) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/927755 Title: Dragging video to timeline eats RAM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openshot/+bug/927755/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs