Ideas
I have the same issue on PS5.
I can see the 4th quest when I’m in the “Play” menu. When you complete the challenge it begins to track the next challenge in an order from top to bottom.
Daily: top to bottom -> Week 1: top to bottom -> “Heal or Resupply teammates on non-friendly Objectives.”
I can’t find the “Heal or Resupply teammates on non-friendly Objectives.” in challenges, and I cannot complete it.
The issue may come from tracking the weekly bonus challenge, and not completing it before the week ends.
I've completed all of the Weekly's of Week 1 on Day 1 and have 1 / 4 tracker since completing all Weekly's for Week 1 so one of these Weekly's was bugged and somehow got stuck upon completion and didn't get properly removed from tracking.
Wrote support about it Day 2 with them having no solution, but with Season 1 today came looking if anyone found a solution😅.
I hope by interacting here we'll get this addressed.