Why are my Base Form Fields Overlapping?

I created a form for a video tutorial about LibreOffice Base
(it can be found at - http://www.youtube.com/watch?v=lPZrFaVyvxc)

The problem is the Start Date and End Date were not properly sized and they were placed on top of the Phone Number. (I didn’t notice it at the time I was recording)

A viewer noticed this and asked me why this happened (because it was happening to him for a form he was creating)

Does anyone know sometimes LibreOffice fields overlap when creating a form?

Note the database created in the video can be downloaded from:
http://www.thefrugalcomputerguy.com/libreoffice-base/index.php

Thank you in advance for help you can give me on this issue.

Michael

Can you replicate this (apparently) buggy behaviour? Is this relevant? By all means post an answer yourself if you hit on a solution.

It happens when using the form creation wizard to make the form, especially where there are numerous fields, that positoining gets miscalculated, with regard to a default page size.

You can always correct this manually afterwards, by opening the form in design mode.