Same issue here. I've done the first side job relating to Brendan, but I cannot even start a second side job.
I am just before completing a main story, but before a point of no return and started completing the side jobs and ncpd missions (level 49, street creed level 50). When I come to Brendan there is a quest mark right at the top of it but I cannot start a quest at all.
I have done a 1st one with a dumpster with no issues. But the second one is bugged.
There is no female beside Brendan and the job stays as "Undiscovered". I tried time skipping, saving and loading, switching a console (PS5) and loading a game again. No luck.
I hope CDP Red will fix it as it locks me from completing a game and getting the trophy as well. I know that there are many other bugs to fix but well, there shouldn't be so many bugs at all.