S60 with full set of CT10 set up

I have used this set up on 15 rounds. Whilst playing rounds the set up seems to working perfectly. However, on three separate occasions although all the shots have recorded on the scorecard the coarse graphics where it shows the individual club shots is missing. On the other 12 rounds everything is fine, so it appears to be a random, intermittent error. Anyone have any further information on this?