Showstopper achievement problem

Hello everyone this is my first ever post on the forums as I was wondering if anyone else has the same problem I have done all the show case events and it’s on 100% yet my achievement is stuck on 83% :confused:

I don’t have that one but 2 career achievements are glitched for me.
Accomplished - complete 60 objectives - stuck at 93%
I got this - complete Ford Factory Spec Showcase event - completed but won’t unlock (at 0%)

That’s strange also ONE FOR THE HISTORY BOOKS achievement is glitched as well I just went to see what % I am at and it was on 94% then I went and looked a few minutes later and it’s gone from 94% to 66% ahhhhhh :frowning: