XCache is cause. I'll have to do some testing and find out the fix.
Quick Fix:
In your
forums/includes/config.php
I added a if statement to disable when on the gallery pages.
Code:
Content visible to verified customers only.
- if you want to experiment around on your own you can limit to only the front page of the gallery.
Code:
Content visible to verified customers only.
Moving this thread to Bugs area.