Trouble with LO Writer templates

Having trouble understanding (and managing) the hyerarchical workings of Writer templates.

In a template I call "Memoranda_Dbl", I have a style named "Text Body".

Property Settings:
Organizer: Name=Text Body; Next Style = Text Body; Linked with = Default Style
Indents & Spacing: Line Spacing 1.5; Indent Before/After and Space Above/Below = 0.00 (same as Default Style)

IMHO, when I produce the next Text Body paragraph (by typing Enter) I should get a paragraph with settings equal to the previous paragraph.

But, what does LO do when in the document I attempt to produce a new paragraph?

Before (pointer at end of current paragraph):
http://s25.postimg.org/qjttw0q8v/Text_Body_before_new_para.png

After typing Enter:
http://s25.postimg.org/88yf0bhen/Text_Body_after_new_para.png

The paragraph spacing changes from 1.5 to single-spaced!

If then I happen to type Enter once more, the previous paragraph turns bold and takes on different above/below features.

What am I missing here, or doing wrong?

Linux Mint 13 (Maya) - Maté 1.6.1
LO Version: 4.1.6.2 Build ID: 410m0(Build:2) - but this used to happen even in LO 3.5.7.2

John,

Having trouble understanding (and managing) the hyerarchical workings of
Writer templates.

In a template I call "Memoranda_Dbl", I have a style named "Text Body".

Property Settings:
Organizer: Name=Text Body; Next Style = Text Body; Linked with = Default
Style
Indents & Spacing: Line Spacing 1.5; Indent Before/After and Space
Above/Below = 0.00 (same as Default Style)

IMHO, when I produce the next Text Body paragraph (by typing Enter) I
should get a paragraph with settings equal to the previous paragraph.

But, what does LO do when in the document I attempt to produce a new
paragraph?

Your screenshots would be more readable if you'd set the unprintable
characters as visible (Ctrl+F10).

Well, yes and no. I read way too fast.
Is it possible to download a copy of your document?

Thank you for trying to help, Jean-François.

After perusing the LO help, I discovered what was playing havoc with my styles.
In Tools > Options, I simply needed to deselect "Apply Styles".

Et voilà. Now everything works as I'd expected it to. Thank God!

jdh