Unable to select artwork in multiple panels

It seems i’m not the first person with a similar problem, but I haven’t been able to find a solution. When selecting artwork in multiple panels (all layer names are identical) by Command-Shift-clicking, the select tool only affects the artwork in the active panel. I’m doing exactly the same operation as described by the tutorial video here: https://www.youtube.com/watch?v=1rZMBxFSj_A

What’s especially frustrating is that this worked for me a week ago. Is there a setting that I inadvertently changed? Any ideas? Thanks!

-Adam

I’m having this same issue with 5.5. I’ve realized now it works when I use my mouse to select the panels but NOT my cintiq pen. One of many cintiq-related bugs I’m encountering.

Whoaaaa! You’re completely right. Thank you!