The only way I can think of to test that is to re-enable all the packs and then check the case list again via DebugEnabler to see if I/we can obtain the cases that way.
I did try this. No change.
I have looked at some comments on Carl's guide page...they are helpful in understanding this profession:
'Igor140 says...
i've put a lot of time into a lot of PI characters, and i've got some notes.
first off, in my simming experience, this is the second buggiest career/ job in the game... next to lifeguard (i have never gotten a single assignment across 4 lifeguard playthroughs).
so, a few things: stakeouts are EXTREMELY buggy... except in sunset valley. i have done a couple dozen stakeouts there, and only had one fail.
other neighborhoods are MUCH less successful. isla paradiso, for example, has a 0% chance of a successful stakeout. that's not a type: ZERO PERCENT. i have attempted close to 100 (37 that i have counted, and an estimated 50 before that), and exactly none of them ever worked. so any opportunity with a stakeout will most likely have to be forfeited. fortunately, there are enough opportunities that you can master the career without them.'
***
'Igor140 says...
"study at the library" is (as admin noted) a university related opportunity and should be canceled.
likewise, "aid police with your psychic abilities" seems to be a fortune teller opportunity, and i've never gotten that to work as a PI either. i've never received it as a FT, but i haven't put much time into that career, so maybe it does show up where it should. regardless, if it shows up for your PI, cancel it.'