Width tool is not working - even with basic brush definition?
Hello,
I'm new to Adobe Support Community, though I've been using the products for a few years now.
My problem is that after using pencil tool, which has no fill and no stroke and is set to basic for brush definition, to draw a line, the width tool is unable to be applied on the line.
Could anyone tell me what's causing this problem? Thank you, in advance!
Below is a screenshot of my Illustrator document:

P.S. My Illustrator is v26.1 running on Windows 11.

