[Lazarus] Changing the Height of a form, the design change me, why?

[SocGer]

I have a form designed that if you change the Height, both in design and
execution, some of its components (Edit, Grid, etc) change my position and
it break the design.

Can you give me an idea of why this happens?

Thanks in advance.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.lazarus-ide.org/pipermail/lazarus/attachments/20160324/b9b3e017/attachment-0002.html>