I qualified for the dpd 4* extreme but it was still locked. Did this happen to anyone else? I was trying to find a reason or other reports of the same but couldn’t. I looked for the place to submit a ticket but couldn’t find it. 
anyways it was frustrating to say the least. What gives?! It was vs Electra and I had a Professor X.
The only reason that node shows as locked is if you’ve already completed it during that cycle. It’s available for all 5 days, and you can do it up to once during those 5 days. The next 5 days will be Cyclops vs hulkbuster. If you complete it today, it’ll show as locked for the next 4 days.