bbcode is not working!
 

hi,
IMG and SIZE codes sometimes work but sometimes not working.
this problem isn't releated hack and puligin. because, problem was suddenly.
and today, my forum has been this problem since this morning
now, what are you doing?

problem; showthread, member signature, member profile ..
meantime, my vbulletin 3,6,8...

https://vborg.vbsupport.ru/external/2008/10/46.jpg

my english is not enough, i hope you understand me :o

These are standard things to try, but they all apply in this case:

Create a new style with no parent - Styles & Templates > Style Manager > Add New Style > no parent - then browse the site using that totally default vbulletin style - do you still have the same problem?

If it is still happening, then try disabling your plugins and see if you still have this problem.
Note: To temporarily disable the plugin system, edit config.php and add this line right under <?php

If so, reupload all the original vB non-image files (except install.php). Make sure you upload these in ASCII format and overwrite the ones on the server.