I've been on the platform for quite some time already. I remember that when the connects system was changed I read somewhere that the ones I currently had would not expire (120). And that's the way it was for quite some time. I used some of them to land a new job back in Sept 2019 and then I still have some remaining (stashing for when I need them, of course!).
Today I get an email telling me that they're expiring on Aug 31st! Did they change how connects work yet again?
When the connects system changed, they said you could carry a maximum of 120 over. However, those would expire I think after a year, which is what you are facing now. I suspect I am, too, although I haven't gotten notice yet.