Okay folks! I think we finally got the gallery achievement working. If your gallery is finished, you really just need to boot up a new game it'll trigger right away. I also changed the flag for the achievement so, if you were accidentally granted it last time, you can use one of those third party tools to wipe your achievement progress without it automatically resyncing.
If you want to wipe the incorrectly given version of the achievement, its API name is: "ACH_GALLERY" (no quotes)
A few other fixes:
For Simplified Chinese, it turns out I'd accidentally gotten the Princess' spooky and normal fonts (pink and red) swapped. I've switched them back. Please let me know if this leads to any issues and I will fix it right away!
For Steam Deck, a display issue was causing the volume sliders in the preferences screen to flow off the screen and become unusable. The Steam Deck is rendering the preferences menu in a *weird* counterintuitive way. While I look into this further, I've disabled some redundant preferences (parallax which doesn't currently work on deck; and auto-forward) so that the sliders display properly and those tools are usable.
We've fixed a number of other small issues as well.
Thanks so much for your patience while we sort this out.