Try the latest themeScript on the Github page (not in releases) here. It might be related to Alpe's issue, I just haven't rolled the fix into a proper release yet.

Yeah I can roll that into the next release

Could you verify this version works before I make it official? I changed it up, since those disable a later containerWrap where it's dependent on type.

themeScript.js

Damn dude, that's badass! I'd love to have a look at that code.

Huh. well that makes no sense... but I guess that fits for a problem that makes no sense.

So you're putting those _back_ right? I'll verify that's fine for general consumption and then change it in the repo.

There are many different ways to trim images into a specific shape. Some involve trimming, others involve stretching/squishing.

There is no one method that works for all images. So instead, in my opinion, it makes more sense to leave the images their given aspect ratio. For instances where a comic cover is a double-page, I find it makes significantly more sense to edit the comic itself.

Tweaking code to suit a specific use-case leads to later needing to add code to handle exceptions, which can be tedious.

So the 404 is normal, there's no other way to test for a series.json. It's actually so normal I follow it with a console line explaining it's fine:

/ubooquity/books/474/?folderinfo=series.json&_=1557059275253:1 Failed to load resource: the server responded with a status of 404 (Folder info resource not found or access not authorized)
themeScript.js:314 The above 404 just means there is no series.json for this page, it can be ignored. - ScooterPSU

Something else has to be different, or isn't being directed by your reverse proxy.

The biggest issue diagnostically is that the difference between 2.8.5 and 2.8.6 is this commit, which doesn't change anything with series.json. https://github.com/scooterpsu/Comixology_Ubooquity_2/commit/30408dff92d4b850735c0d6256bdf8a327855dca 

Try clearing your ID cache. Hover your user name, there should be an option to do so in the pop-up.

The only thing I can think of happening is that it's trying to load something using a cached ID that doesn't exist anymore.

I do both of those as well. Any errors in console?

The series.json needs to be in the folder, there is no setting.

The logo is the folder.jpg from the folder containing it. Your Viz folder's folder.jpg. If it's not loading, maybe it's a capitalization issue.