Hi Gavick,
I use Finanacial bussiness on this site http://lamdongreal.vn and find that the Module Class Suffix works unexpectedly in some positions. For example I use "color3" for the module in pos user3 (see livesite), but the module appears just as normal. I have checked the parameter for several times to make sure I type exactly the "color3" with a space before it, but nothing changed. Then I moved that module to another pos (user1 and user2), it worked just fine. I moved it back again to pos user3, no module class suffix applied. I made a copy to duplicate this module, and they are showed as in the attachtment: one with module class suffix applied and onother one without... They are 100% the same because they were copied from the other.
My question is why and how to fix this?