Unwanted character styles

Hi @Grundoon Groundhog :

Here is a post I wrote for one of my InDesign students that you may find helpful: https://www.rockymountaintraining.com/adobe-indesign-setting-and-removing-defaults/.

TL;DR

1. Close all open documents
2. Window > Styles > Character Style
3. Click on [None]
4. Open a new file. 
5. Add a text frame and start typing—no character styles will be applied because you just set a system default.

~Barb 

As Derek mentioned, this is most probably due to the default styles applied to your object/text. See this discussion where I describe how to set default values for these. Check the default value used for your documents, and if needed, make the changes. For the change to work for all the documents opened henceforth, make the change with no documents open.

-Manan

Paragraph Styles are used for whole paragraphs (within a text box) and Character Styles are used for an individual word or words within a paragraph - you may have a default style, possibly an Object Style, being applied; check them all!