Hover over the username in the upper-right and the pop-up menu should have a Clear Cache link.

Only thing that stands out is your bookBaseID is set to true instead of an actual ID. But that shouldn't impact anything here. Otherwise the Xirvik message in your console output makes me wonder if something is being cached somewhere. It's a real head-scratcher.

So nothing's wrong there, could you post your settings.js?

There must be an error, that doesn't make any sense otherwise. Open your browser's Developer Tools (Chrome's is Ctrl+Shift+I), click Console and copy-paste anything there.

The problem there is that it's extremely user-specific. You're either stretching or cropping, and neither works 100% for all books.

it should be under the title

Getting the ID of the series isn't really possible with how Ubooquity handles things. Hopefully that's something we can do with the next version.

In settings.js, set "showBookCount" to true. It adds the count below the title.

Shy of replacing your covers with something like Calibre, not really. The inconsistent sizing also means there's no consistent way to crop the images programmatically so they don't look bad.

One issue is that we're technically talking about different things. The Series section is essentially Story Arcs, but for books. So you wouldn't use Series in the scenario you just described. Plus it only applies to books, not comics.

I use Mylar to sort my comics, and the default is Comics/Publisher/Series/Issues (ie. Comics/DC/Batman/Batman 001.cbr).

Calibre can be setup to do the same, but I haven't messed around with it much.