Good catch! I do indeed! Have told Safari to deny Bitwarden on my Unraid server page, and the Apps page loads fine.
If it helps debug, 2021 M1 Pro, OS 14.5, Safari 17.5, BW 2024.6.1, Unraid 6.12.10, CA 2024.06.08a
Try to go to the contact page as I need to change the email address associated with my account. Unfortunately it doesn't load, meaning I cannot contact anyone!
I am also having this issue. And when it happens, I get Webkit Error 300 on other Unraid hosted pages (e.g. Homarr) which suggests it is either a Safari wide thing, or an Unraid wide thing!
You've also changed USB as part of this rollback. Is it possible the issue was actually the USB stick you were using?
(only way to be sure - upgrade to 6.10.3 again and see if it brings back the db corruptions!)