I did as you suggested, and that solved the problem with the flight plan. However, another problem (which I did not mention before) persists. I had hoped that having an empty Community folder would have solved this one as well, but it did not.
The plane does not pick up the glide path on approach. I believe I am doing everything correctly (localizer frequency, approach altitude, LS on, LOC on, APPR on). The plane follows the flight plan well until the point of joining the glide path. The plane flies the localizer path exactly but overflies the GS intersection without showing a green GS. I have flown the A320 V1 many times and have never had a problem with this, unless I created it by being too high.
Any thoughts on what I am doing wrong, or how to correct this? Do I have to activate the approach on the MCDU?
Thanks.