This is a weird one.
I am subscribed to Risa@startrek.website When browsing on my phone I can see the thumbnails just fine. When browsing on my desktop ublock origin blocks the thumbnails and avatars, but only from the startrek.website instance, and only when I’m accessing it through Lemmy.ca
If I go directly to startrek.website I can view everything fine, and other instances I am not encountering this issue with. Any idea what might be the cause? I am using Firefox.
Do you have any particular blocklists enabled besides the default ones? Try disabling them one by one until you find the culprit, then report a false positive to the list’s maintainers.