XF 1.5 Notices Not Displaying [SOLVED]

[md_5]

Running 1.5.0, I've tried everything to figure out why notices are not displaying anymore, but I simply can't find it. Nothing is using any of the hooks, the notices are enabled for all users, and they don't even appear in the html source on the default style.
This also affects inbuilt notices such as "email confirmation required".

 

[md_5]

Please submit a ticket with log in details. We ought to take a quick look. (Full Admin access will be useful, FTP too if it's easy enough to provide).

Apologies to all involved, I found the cause of the issue!
My library/XenForo/ViewRenderer/HtmlPublic.php file was still the old security patched versions from 1.4, and not the new 1.5 one.
I forgot to remove it from my overlay directory when updating to 1.5:

Thanks as always anyway!