Issue with pdf.js in vscodium

[s8foschm]

I'm currently having an issue with the integrated PDF viewer for VSCodium. I don't quite know if it's specific to VSCodium, as I don't have an installation of VSCode to check it against, so I'm asking here instead of creating an issue.

Basically, I can open PDF files, but they don't update automatically like they should. Instead, they only update when I change the "Spreads" option in the pdf settings (at least that's the only way I found to make them update).
When I open a PDF, it only shows as a white file (not even a blank page, just a white background). When I go to the page thumbnails, I can see the correct page. Once I change the "spreads" option, it shows up just like normal.
When the PDF changes (which it does often, since I am working with LaTeX (LaTeX Workshop specifically)), it doesn't update, even if the PDF is currently being shown. I used to update, but it hasn't anymore for a while. Again, once I change the "Spreads" option, it updates. It's just that it doesn't do that automatically like it should.

I don't really know how to go about solving this issue. I've tried to clear all kinds of cache, but it still doesn't work. Any ideas? I don't even know if it is a VSCodium or pdf.js issue, though I don't encounter this issue when opening PDFs in Firefox (or Zen browser in my case, but just generally, other applications which use pdf.js).