Update to Accordeon CK V2.1

how are you setting the active state ? with custom css ? have you tried from the interface ?

I'm setting it from within the module settings on the tabs First Level Link Style etc.

this is the hover color, and it works
you were asking about the active state, how did you set it up ?

I didn't do anything separate to set it up for active. When I selected it like that it worked. The relevant menu items for the path I was on were showing up in red too. for example of I was on the news>2017 page both news & 2017 were red automatically.

I just restored a backup locally and checked the css file for the 'simple' theme and found this is it:

<?php echo $id; ?> .isactive {
color: #e41921;

Which is what was making it work I guess as I have added that back into the site and now it's working again. I guess your update over wrote this file (which I don't remember ever editing) so how can I make sure future updates won't overwrite it again?

Ok, you can duplicate the theme like exlained here
docs.joomlack.fr/maximenu-ck/5-how-to-customize-a-theme

this way you can keep your own theme for the next updates