I could repeat the issue on my machine. If I suppressed the Slot feature in the part 01^AF17350BC201 it seems to correct it, but I can't explain why this would cause it. I would raise this with your reseller to try find a fix, maybe it's a corrupt file?
But at least for now you could suppress this and continue with your assembly. You could also make another configuration which has this shown for drawing purposes.
It seems that you are right.
I deleted and added the slot hole wizard and everything is OK now.
We have sent the file to our VAR. I thought while we are waiting for an answer maybe someone can help us here.
Thanks for your help