What would cause the styles color selector UI to no longer display the select color button? I've included a screenshot of what I'm experiencing.
Using latest version of Chrome on Mac. It's not browser related because it's broken in our development Wordpress instance but it's working in our staging Wordpress instance. For example, in one browser tab (for my dev environment) I go to Forums ->Settings -> Styles and the select color button is not displaying but in same browser window, I open another tab for my staging site and go to Forums ->Settings -> Styles and the select color button is displaying. Looks like something is broke on our development sites instance. We see
Yes, this is caused by other plugins or the active theme. They generates JS error in Dashboard, thus affecting the color picker JS functions of wpForo. You can press F12 and check JS errors in "Console" Tab of Chrome Console or in Firebug.
Another easy way is just disabling plugins one by one and checking the result.