Throughout all of 2018 betas, animating and using the timeline was super buggy in a number of ways. It's hard to make bug reports for these since they are UI-related or just plain weird and not properly reproducible. I tried finding other posts that mention these, but didn't find them. I'll try to list some that I can think of here that came up while using timeline actively on projects in the last weeks: Weird / undocumented behaviour between embedded clips / animation clips creating an animation clip in an animator, then using that in the timeline, it's not possible to change the animation clip from double-clicking in the timeline. creating an animation by recording into an infinite clip, then converting that to a anim clip, it is possible to change the clip. creating an infinite clip, convert to anim clip, move around, convert back to infinite - works creating an infinite clip, convert to anim clip, split, convert to infinite does not work / option not shown (that would be the main use case - time stretching of specific parts of an infinite clip) embedded animation clips can be used in animators, but clips created in animators can't be recorded into in timeline Rotations just jump around, animating rotations is basically not possible create two keyframes that have pos + rotations move timeline marker inbetween them rotate object slightly play the animation and note that everything is going crazy curve view shows that angles are all messed up (+- 360° etc.) Animating position/rotation properties sometimes seems to get locales mixed up and change e.g. 33.5 to 33500000 - happens randomly, once it happens it always happens with that specific property (on german locale here if that helps) Using the timeline sometimes changes settings in the scene that are then persistent (unless using Animator and Animation clips - changes never stick around in the scene, as it should be) Pausing a timeline doesn't keep it's state, instead does the same as stopping it (is that intended - if yes it's weird) Seems its not possible to have a Timeline run and keep the "final state" once the Timeline has ended (or is there? couldn't find it) Seems it's not possible to use a Timeline inside a Timeline, but would be super useful for putting complex stuff together Duplicating a Playable Director makes all Bindings disappear When trying to copy from one timeline to another: selecting the clips, copying, going to another timeline and pasting : clips are pasted into the timeline they were copied from, not into the one that is open selecting all in the binding list (left of the clip view), copying, going to another timeline and pasting : same as above selecting all in the binding list, copying, going to another timeline, clicking into the binding list and pasting : clips appear in the right timeline, but not at the time marker, instead they are put to the beginning Moving a clip to another Animator Track makes that clip move in time as far left as it can (it completely ignores where you drop it on the Track) Animating in clips whose timing has been scaled/changed: (I understand this is a complicated one, just want to point out some weird behaviours) start with an infinite track, turn into animation clip, stretch in time. move timeline marker to where you want to change sth double click to edit move object around (change some property that is animated) -- animation looks correct, but keyframe sits at a totally different position in the clip view (with no respect to current time stretching), UI basically shows nothing about the stretched time, impossible to go back to keyframes and edit them 12. Clip Offsets randomly get set / unset by clicking on specific parts of the timeline. Sometimes right-clicking "reset" solves objects jumping around randomly, sometimes "set to previous clip", sometimes just nothing but reloading the scene fixes it. Values seem to change out of nothing by just clicking into the previous / next clip (without doing anything with it). Sorry if thas has been documented before, I just hope it gets better / more clear. So much weird stuff makes it really hard to use the timeline. When it "works", it's great though - enabling a ton of workflows and creative processes that were a lot harder before.