Clicking the score at a point after a repeat causes quick flash of cursor at incorrect position

[jonaro00]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

When clicking on bar 3, the blue beat cursor recalculates its position. During this, it (and the yellow bar highlight) flashes and is briefly visible on bar 1 (circled in image above) for roughly one frame. (I can provide a slow mo GIF if needed)

Expected Behavior

The cursor should not render until the new position is fully calculated.

Steps To Reproduce

\ro :1 r | \rc 2 r | r | r

Click repeatedly on bar 3 and see the cursor flash on bar 1.

Link to jsFiddle, CodePen, Project

No response

Found in Version

1.3-alpha

Platform

Web

Environment

- **OS**: Windows 10
- **Browser**: Latest Brave (Chromium) and Firefox

Anything else?

Likely caused when the offset from start of score is calculated and the durations of repeats are added afterwards.

[Danielku15]

The problem is caused here:

alphaTab/src/AlphaTabApiBase.ts

Line 1165 in 56b444c

this.cursorUpdateTick(this._selectionStart.beat.absolutePlaybackStart, false);

We are seeking to the absolutePlaybackStart of the clicked beat. But this information there in the model does not respect repeats seeking actually to the bar 0 (because that's the one at played at absolutePlaybackStart) and then another trigger in alphaTab corrects the cursor.