When I open a new document it checks spelling using a different dictionary (Dutch) than what I have set in preferences (English USA). When I go to change it back to English (edit > spelling > user dictionary) it does not save and continues to show Dutch when it checks spelling. This only an issue when I open a new document.
spell check switches to different user dictionary than what I have set it at under preferences and does not allow me to change it
Language is a character level attribute and the default language is set with no documents open, or not ext selected for an existing file. The dictionary settings in the prefs are simply a choice of which dictionary to use for each language if there is more than one installed.