So I like many of you no doubt, have been afraid to play after noticing I had the xp bug on Thursday night. Went on and gave it a bash after the latest RED post today. Got no xp for 1 main mission, done a side quest and only got 30 xp for using Axii sign. Started another secondary quest "matter of life or death" - got nothing. But on the next phase "now or never" I got around 2k xp. Kept popping up 200xp on various phases of the quest. At the end I got no indication of how much xp I got for completion but I got another level... So I must have got the xp that time without it showing after the quest completed dialogue. (I was checking before if I was getting xp even if the game wasn't showing me, on the first few quest i mentioned)
So I came to the conclusion I will just play this weekend and enjoy, I really don't know when the bug kicked in for me but I am level 18 now and way ahead of the current curve. Would suck to be able to complete everything and not get to use certain gear etc but hey as long as i get level 35 for plat... I guess that's "ok" for me... To say I'm disappointed is an understatement tho, I also would appreciate more clarification on the exact details of what wont reward xp etc, or is it all just random.