I have noticed this as well. When adding directives as well. Typically happens to me when doing missions but the end of the mission it awards the correct amount even if when starting or fast traveling to them shows the lower amount.
After completing it are you awarded the lower or higher (correct) amount?
I haven’t been playing many control points lately due to the events but I am always rewarded the correct amount.
But I have noticed other inconsistencies with XP but rewarded XP has always been correct for me. But headshots are never the same for me. I’ve made a thread about it here but no one else has replied or reported anything like it that I am aware of. Maybe I am a little OCD and notice little things.
Typically I notice it mostly in invaded and non-invaded missions. Like non invaded shows the invaded XP and vice versa but always been rewarded the correct amount which is roughly 100k more or less.
Keep a close eye on the rewarded amount and I will do the same and let’s both see if it rewards the correct amount and if not try and grab a screenshot or video of it. I haven’t with the headshot XP since it doesn’t stay on the screen that long and typically in the middle of game play or doing something and since I am using remote play I’m not able to record my sessions.