Have you tried logging out and logging back in or tried changing the difficulty and changing it back to whatever difficulty you wish to play.
Sometimes that will reset things. Change the difficulty should “reset” control points. That was one issue that was supposed to be fixed with the update/patch/whatever that was done on 4/7/20 granted I haven’t tried this yet on my map since after the update my map was completely reset since my map was almost entirely green. So I haven’t needed to do this myself yet.
If those things do not work in game might try power cycling your PS4 and try again. Sometimes you can not take over a control point due to a single enemy hiding as well so make sure you search for a hidden sniper or other type of enemy sometimes they like to hide in corners and won’t come out of cover from what I have seen.
I hope this helps