While scaling Live Paint object correctly scales strokes if done via the UI, it fails to scale strokes if done via the PageItem.resize method in the scripting API.

MacOS 15.0.1 Illustrator 29.0.

Steps to reproduce:
1. New document
2. Create a Live Paint object including stroked areas.
3. Select the Live Paint object.
4. Run the following script:

var item = app.activeDocument.selection[0];
item.resize(200, 200, true, true, true, true);

Expected result is that the Live Paint object's stroke widths would double. However they remain the same as before.

See this user post.