Illustrator paragraph style missing attributes

[laura@orano]

hi! i've noticed that sometimes a paragraph style i've created in illustrator—with specific font family, font style, size, leading, tracking, etc.—will have the font family and font style fields blank when i open go into the paragraph style options to edit. the style will work properly, including applying those attributes, but if i go to edit i have to repopulate those fields, which in some cases becomes a trial-and-error attempt to recreate the original style so i can make whatever changes i want to make. i attached a screen snip, which even shows the font name is incorrect in the toolbar (the font is called "big shoulders display" and the toolbar says "myriad pro"). is this happening for anyone else, and is there a way to fix it?

[Monika Gause]

How do you create the style?

Picking up from a styled text automatically? Then unfortunately your result has to be expected.

Or by actually setting it up in the dialog box? 

[laura@orano]

i've done both, but this one was a style i had previously created, which i think i changed by manually resizing the text itself, then choosing "redefine paragraph style." is this why?