On first click, the Widget loads -- you're actually clicking on an image (Default.png) that is generated based on the playhead's position during export. To have your animation in Timeline 'A' play on first click, you'll need to detect that the Widget was opened, and then run this function 'On Scene Load' for your scene:
widget.didEnterWidgetMode = function() {
// When opening the widget, go play the 'A' timeline
hypeDocument.startTimelineNamed('A', hypeDocument.kDirectionForward)
};
testA 3.zip (12.1 KB)
This technique is from this guide: