i had this happen tonight too. in cyrodiil, get message saying i got a CP, my bar indicated i had it. but when i went to slot the point... not there. after a relog i was back down to about 200k XP
Happened to me in cyrodiil, got to 400 k with enlightenment. Got message saying I had a champion point. When I went into champion system to spend it, it wasn't there. My bar said that I had 71 champion points. Tried relogging to see if it would fix it. But no my bar now says 70 cp and 277k xp. WTF!!!! Fix ur buggy sh.t Zos.