Hi Pauliez:
I’ve edited the subject to reflect something more meaningful if someone searches in the future.
This happens because of the rules that Word applies when you cut (or copy) & paste.
1. Direct formatting is retained. However, certain font properties are toggled (e.g. italic, bold) & so they may take on the opposite properties. i.e. if you copy two words that are formatted as bold & paste them into a paragraph that is already bold, their bold properties will be toggled off.
2. If you cut/copy text without copying a paragraph mark, they will take on the paragraph style of the target paragraph.
3. If you copy text which includs a paragraph mark, whose identically named style has been used in the target document, it will take on the properties of the style in the target document. This is probably what is happening to you.
If you cut/copy MyStyle in source document that uses Arial, bold, green font & paste it into a target document that has used MyStyle already AND that style is defined as TNR, italic, blue font, your pasted text will be TNR, italic & blue. A style is considered used if it every existed in the target document, even if you had later deleted it. Also, normal, Headings 1 through 3 are always considered “used” in every document.
To prevent this behavior (i.e. you want the text to remain the same when copied), rename the style in the source document to something that doesn’t exist in the target document (e.g. MyOriginalStyle).
Hope this helps.