We just released a fix, if you're starting at chapter 3 you need to get to the point where Trald wants you to get into the frat party, and have interacted with him outside of the MSQ in the prelude, but if you're using the skip it would be considered you did his normal and flirting workouts.
And luckily, the fake guide has been updated.
If you're using the new skip he's there, but you can't see his intro event. Remember he does give you different events based on if you're cute and had sex with him or not.