The new definitions not exporting with client install package on SEPM

Hello,

We have SEPM 12.1.4 at Windows server 2008 today after i export the package form SEPM the size is 60MB and after install it the client not have the latest definition but i was export from week ago and it was with the latest definition and the size about 420MB. i don't know whats happend.

any help would be appreciated

Thanks