Why do I see this error in the console?

Minified JS files can't output proper console logs. In order for them to do so it needs a map file. qtip2 is trying to load in a map file that doesn't exist. I missed this change when updating qtip2 and didn't notice it as I run debug mode, which loads the fully jQuery file. I've removed the loading of the map file for next build. If you want to remove it manually then you can remove the last code line in the below file.

components/com_comprofiler/js/jquery-1.11.1/jquery.qtip.min.js

forge.joomlapolis.com/issues/4925

I also noticed that jquery migrate gets loaded twice. First from Joomla jui then from CB. That is useless. Where do I switch that off?

It's not possible to shut off the loading of our jQuery migration script without modifying core code. You would need to change the _CB_JQUERY_MIGRATE define in the following file.

libraries/CBLib/CB/Legacy/CBframework.php

We have no idea what 3rd party extension has loaded what. The API to prevent duplicate loading was proposed to Joomla by Beat, but as far as I am aware Joomla never accepted or implemented it. CB it self stops double loading if you use CB API (e.g. calling the same jQuery plugin 5 times in a row only loads it once).

We're not here to police everyones extensions and what they do. Nor can we depend on another extensions version of jQuery being up to date or compatible with CB. You're asking us to introduce possible compatibility issues, which we do not care to debug and provide support for on a daily basis. So instead we deep noConflict all of CBs jQuery and never have any issues. As long as noConflict is used you can load 100 of the same plugin and never have issues aside from a few lost KB, which is irrelevant with todays internet speeds.

As a note you're able to turn off the loading of core CB functionality such as our jQuery library within CB > Configuration > Integrations. I've added a feature ticket to add a new parameter there to allow turning off the migrate plugin, which should help with your needs.

forge.joomlapolis.com/issues/4931