I had this problem, too, some months ago.
Many people forget that they also have to update the template scripts (for exemple the .fx files and things like mtlfx.c) when updating to a higher version, because they sometimes work only with one specific Gamestudio version. In most cases you should just overwrite the "include" folder in your game directory with that one of the new Gamestudio version. Or just overwrite the old scripts and fx-files with the new ones. That worked for me.