[Layer expansion showing objects (BikeMama)]

My 12 year old daughter has been using Affinity Designer for a while.  Tonight she got super frustrated because the program has suddenly started behaving differently.  She's noticed two things, and one of them drives her CRAZY.  First, every time she draws a line, the layer the line is drawn on expands in the layers window/panel to show all the object under the layer.  She says it didn't used to do this.  She says it's confusing to see all those objects listed under the layer.  She wants to know if there is a way to keep the layer collapsed while she draws.  She'll collapes it, then as soon as she starts to draw, the layer "expands" to show all the objects.  It's driving her crazy.  Second (seemingly less offensive but nonethless confusing to her), she can now draw on the black space behind the white canvas.  Is this normal?  New?

 

She suspects these changes are either due to an update to the software, or maybe she changed a setting someplace that she doesn't realize she changed.

 

Thanks so much for any info!