https://bugs.winehq.org/show_bug.cgi?id=54143
--- Comment #8 from David dav75uk@yahoo.co.uk --- There is one further bug which may or may not be related.
If I draw yellow arrows from the 2nd rank (h2, g2, f2 etc) to the 8ths (h8, g8, f8 etc) the top position of the arrow heads are not consistent. Some times the tip of the arrow is in the centre of the square, other times it's about a quarter of the way in. The arrows heads are the same size irrespective of position. This is only seen on ChessBase11, not CBReader.
I'm yet to verify if it's a native bug or not yet (for its price, ChessBase is full of minor bugs), it could quite possibly be, but since it's related to the arrow drawing (and might be noticed when tackling this bug), I thought I'd note it here.