Storyboard section with loops rendered incorrectly

[NoffyNoffeh]

Type

Game Behavior

Bug description

When playing the daily challenge for the Hide and Seek set https://osu.ppy.sh/beatmapsets/972932#osu/2036905 , I noticed my storyboard is broken in lazer at 01:02:005 - through 01:07:895 - and 01:55:011 -

Some elements expected to scale repeatedly using a loop command stop scaling after the first instance of the loop command is completed, and creates a different undesired visual when compared to stable.

Screenshots or videos

A video showing how it currently plays in stable vs. lazer:
https://www.youtube.com/watch?v=qjzQ3kqhi6Y

Here is the osb script for the two related sprites, if it's useful to reference:

bottom sprite

top sprite with looping scale command

Version

2024.817.0

Logs

compressed-logs.zip

[bdach]

Looking at what the storyboard classes do, the minimal example is

        [Test]
        public void TestTest() => AddStep("do stuff", () =>
        {
            Box box;

            Child = box = new MyBox
            {
                Size = new Vector2(100),
                Anchor = Anchor.Centre,
                Origin = Anchor.Centre,
            };

            using (box.BeginDelayedSequence(500))
                box.ScaleTo(Vector2.Zero).Then().ScaleTo(new Vector2(0.8f), 250, Easing.OutElastic).Loop(500, 10);

            using (box.BeginDelayedSequence(1000))
                box.ScaleTo(Vector2.Zero).Then().ScaleTo(Vector2.Zero).Loop(500, 10);
        });


        private partial class MyBox : Box
        {
            public override bool RemoveCompletedTransforms => false;
        }

(MyBox is there just to be able to see the transforms in post, although it being present does match the storyboard case.)

I'm not super sure where to take this next, because you could argue that it's a framework bug in transform handling, or it's a bug in the storyboard implementation because this code is not valid.

@smoogipoo mind taking a look here and chipping in as to whether you'd expect the code as written above to visually behave as is expected? (see video in OP)