Hi,
Thank you for your prompt response! I deleted the hummingbird-asset folder but that made the theme break. I panicked and created a new folder named hummingbird-assets and deactivated hummingbird. This ended up solving all of my previously mentioned examples.
I haven’t tried activating it again, but it does seem like this was the culprit. In hindsight, maybe it’s a bad idea to optimize (Smush & Hummingbird) your website in a staging environment?
I hope this doesn’t mean that I won’t be able to use Smush & Hummingbird!
All the best,
Chris