You are very welcome. I love the FBW A320 and fly it much of the time.
Something else you might like to try. If you click F-PLN on the MCDU you can see your flightplan in the display above. Ap and to the right of this there is a knob with LS, ROSE VOR, NAV, ARC and PLAN, It will probably be on ARC. Turn the knob to PLAN and you can step through the plan using the up and down arrows on the MCDU. A discontinuity is just a gap which you will see as you step through the flight plan. CLR it and the plan will join up.
Happy flying!