InDesign 16.1 Dictionary Issues

[WolfyGirl]

I am running 16.1 on Mac OS 11.3 and I am unable to switch dictionary's from English: UK to English: US. I am getting really frustrated with it. I've tried restarting both InDesign and the computer. In the preferences it is set to US but in the document I am working with it keeps defaulting back to UK. No matter what I do. I'll change it to US and as soon as I close the window it defaults back to UK. Does anyone else have this issue or a solution?

Within the document it appears that the dictionary is set to UK, but the dictionary is set to US:

  

[Mike Witherell]

Are you also changing the language called for in the paragraph styles?

Are you changing preferences while no documents are open?

https://community.adobe.com/t5/indesign/reset-indesign-preferences-and-other-troubleshooting/td-p/11...

[WolfyGirl]

1. No place in paragraph styles to call out a dictionary that I know of. I've looked and don't see anything, so ?

2. I've tried both ways, with the document open and before I open it. Neither has made a difference. 

When I created this document, about 3 years ago, it was set to US. This is a new issue that is affecting all my documents.