Yep topgun
It is a heap of crap and complicated at that. Compared to a late generation boeing it is in the stoneage. Why they never updated it. I don't know. Prob cost or commonality.
But if you are not careful in situations like a go around, going to track mode when flying a managed approach approaching the minima or the other silly assed thing like puting a fix line within i think it is .2nm of the rway threshold where by the FMGC will dump all the flight plan data entered. This a/c will catch you.