The update is probably related to chronicle pack and some mac utilization, be patient the trainer will be updated.
No hurry just a FYI.
Question, will you guys update the trainer for the DLCs? =)
I believe one of the DLC's that came out the trainer works with. But they tend not made for just dlc's. You can ask but it will be up to Cal.
i have the same problem,first i buy only the game mll,i download the last trainer and it works perfect so i thought i buy the dlc's to,but when i start the game + trainer the trainer works but when i go use a weapon from the dlc's and active super damage/no reload/unlimited clips,the game crasht.
CH tend not to cover dlcs. So be patient they might update it.