Can't find and delete by colour

In old versions of Adobe Flash you could use find and replace (ctrl f), select the swatch of the find colour and click 'Find All' and it would select/highlight all the shapes with that colour swatch in your scene/document. You could then simply delete those selections with backspace. So if you had a purple spotted red rectangle you could use this to delete the purple spots and leave transparent holes.

But in Adobe animate, when you click the find button it clearly finds the shapes with that colour but it doesn't actually select them in your scene, or at least not in my case. I can still find and replace ie. change the a colour to another colour. But I have no way to find and delete.

Does anyone know why this no longer works as it used to? It's something I would find really useful.