[x] Position and Zoom effect is no longer able to use keyframe. (Possibly other effects also)
[x] Cannot change the length of a clip by double clicking and setting the value. It appears to work, but after clicking “Okay”, it will revert to the previous value or even change to an unspecified value.
 Titleclip template, don’t update after editing.
 When I added a new video track, then compositing did not work by default on this track: I only saw the picture on the top track, although that image was supposed to be mostly transparent.
The compositing worked by default only on those video tracks that were already in the project when I created it.
When I added “Composite” transition on that layer, then it worked as expected: I saw the image of top track on top of the other tracks. It also started working without “Composite” transition after I switched “Track compositing” setting from default “High Quality” to something else and then back.
 Sometimes the “Fade to/from black” effects didn’t appear while dragging the respective handles on top corners of the timeline clip. Sometimes they did, but I couldn’t understand what that was depending on. They always appeared when I dragged the “Fade to/from black” effect from effects panel onto video clip on timeline.
[x] When hiding or unhiding a video track, the preview in timeline monitor is updated only after changing frame, not immediately.
[x] While moving back and forth on timeline, the time cursor in keyframed transitions’ (like “Composite and transform” or “Cairo Blend”) properties panel does not move. The time cursor in effects’ properties panel moves correctly.
 Splitting clips that have keyframed effects on them gives different results depending on situation and the location where I split them. I would expect that after splitting a clip from between two keyframes, both clips would get an additional keyframe on splitting point so that the visible end result does not change, but I experienced 2 different behaviours at different tries, none of which was expected: a) the first keyframe was moved to the beginning of the second clip and the following keyframes were moved ahead by the same amount of time; b) keyframes were “squashed” close together onto the first clip so that the whole animation would fit on the first clip. It looked like it was squashed by the same amount as the resulting first clip was smaller compared to the initial whole clip (about 3X in my situation).
 Trimming clips from their beginning on timeline moves effects’ keyframes on these clips by trimmed amount.
 It happened once that I was unable to add keyframes to a “Composite and transform” transition (“+” button was grayed out on properties panel) that I had already added some keyframes before. This case was fixed by deleting and re-adding the transition, but of course I had to re-add all the previously added keyframes that I had deleted together with the clip.
 Timeline zone marker is not visible. When I add a Preview Zone, the green bar appears where usually the timeline zone marker should be (the beginning of timeline, first 25 frames), but zone marker itself is not visible. - CANNOT REPRODUCE
 When scrolling mouse wheel while hovering over the “header” of timeline (where the track names and mute icons are), the timeline view does not scroll up or down like it did in previous versions.
 Spacer tool moves clips only, not transitions.
 Spacer tools only moves the clips that start after its current location. In the previous versions of Kdenlive, it also moved the clips that had started before the location of spacer cursor but had not ended before that position. This makes it impossible to move all the clips at once if the first clip starts at position 00:00:00:00.
 Some seconds after deleting any track Kdenlive crashes. It is impossible to recover that project because after pressing “Recover” button on startup confirmation, Kdenlive crashes again immediately.
 There is no indicator that a track or project bin clip has an effect on it. Previous versions had a star icon for that.
 While moving clips, effects or transitions around the timeline, Kdenlive often crashes with segmentation faults.
 I was sometimes unable to drag and drop any effects or transitions on clips (the effects were not put into clip properties after dragging and dropping). Then, after clicking around randomly for some time, the problem just went away.
 A lot of images flashing rapidly in my Project Monitor. If I switch to full screen, the problem stops and if I switch back to my Project Monitor, it’s flashing again. Have a look on this short clip to see what I mean: https://www.youtube.com/watch?v=wf7YLDrdbck
 Changing themes doesn’t work properly. I tried to change my theme to Breeze Dark and got a message like, “kdenlive needs to be restarted in order to apply the changes.” I clicked Continue and it restarted but did not apply the changes. I have having trouble making Breeze Dark my default theme.
 Starting Kdenlive stalls when loading up. I normally use version 17.02.0d and whenever I start it, I get a pop-up about not having “dvdauthor” installed. Once I click “Abort”, kdenlive loads immediately. On this version, I see that same pop-up appear but then disappear very quickly and then kdenlive takes about ~17 seconds to start. This is a problem in 18.04.1 as well.
 I can’t find the preview render slider. Normally there is a blue slider I can use above the timeline to create a preview render or only render a selection of my video. I can’t find that here. When I open old kdenlive projects, it is there.
[x] Replay won’t work. Once a clip has reached the end, I like to press spacebar to have it play again from the beginning. This isn’t working. I have to manually drag it to the beginning.
 When I use “Preview” mode for the timeline, the Position and Zoom function doesn’t work properly when I want to move or adjust the size of a picture. If I try to move a picture to the left or right side of the screen, it gets cut off or only goes half of the way there. Changing to High Quality fixes this.
 Render to mp3 crashes
 Adding effects from the masive “Audio” category – none of the parameters for the effects appear. So they can not be used.
 Position And Zoom. If you adjust the size by dragging the red marque around the size on the settings in the effect does not update.
Screen shot below
 Clip Jobs – vidstab, the program segfaults
 Bezier Curve crashes project. At 0.00
 Project crashes when moving multiple clips onto video tracks without corresponding audio tracks. At 1:21 and Bug 397198
 Double clicking on a clip causes the clip to remain in the state until the cursor is clicked somewhere else. At 2:47
 Some effects work, but adjusting their value slider causes glitching. At 3:18
 Set audio reference/align audio not working