Overlapping storyboard commands behave differently from stable

Describe the bug: In beatmap Sweet Dreams (11t dnb mix) Playtime: 38330ms and 95673ms part of osb code:

//line 309911 for part playtime 38330ms
Sprite,Foreground,CentreLeft,"sb\z37.png",32,234
 S,0,0,,0,0.5
 F,0,36015,36215,0,1
 MY,7,36015,36415,234,256
 R,0,36015,38415,0,0.128
 MX,0,36415,38015,32,31
 MY,0,36415,38015,256
 F,0,37387,37487,1,0
 F,0,37387,38415,0
 MY,6,38015,38415,256,271
 F,0,38215,38415,1,0

I am not sure if it’s bug about osu!lazer storyboard implement , or storyboarder 😦

Screenshots or videos showing encountered issue: lazer expect behavior screen:

osu!stable: osu!lazer version: 2019.1216.0

Logs:

[smoogipoo]

I’ve looked into this and it seems to be the difference between how transforms work in lazer vs stable.

Consider the case:

Transform1:     | -----------------------|
Transform2:                   |--------------------|
         t:     0             1          2         3

In stable, T1 has an effect from t=0…2, and T2 has an effect from t=2…3. In lazer, T1 has an effect from t=0…1, and T2 has an effect from t=1…3.

Lazer is doing this correctly so a framework fix isn’t required, however slicing the transforms to match stable is non-trivial.

[peppy]

Please leave this open as it is still an issue.