Thanks Madhura, yes I can elaborate.
By 'not responding,' I mean that when I go to a layer that I've added to the Compilation window and hover over the triple-dot icon, I can see the drop down of options, and I click on "Change Style," but there is no result. I don't see any error message, and I don't get any options.
To clarify, sometimes the it does work, and I click on Change Style and I can see all of the options to choose an attribute and change how it displays. Then, when I have made the desired changes and close out, I often can't get back in again to make further changes, on either the same layer or any other. If it works at all, it normally only works once or twice before I am no longer able to access Change Style. The problem doesn't appear to apply to other options in the same drop down menu, and I am having this problem with all layers for which Change Style options are supposed to be available. It doesn't seem to be specific to a particular layer or layers.
The only method that seems to help is to save and close down Illustrator, reload and try again, and if this works then Change Style is still only available once or twice as I described above.
Thanks for looking into this. I'm not working with anybody else who is also using the extension, so I hoped to find out if anyone else is having a similar problem, or if there's a workaround that could save some time.