Trying to refactor a bunch of css identifiers (in .scss files) and whenever I select an identifier and do a Refactor Rename (Ctrl - R), the dialog that pops up has a red ligthning bolt messsage that says "<identifier> is invalid identifier" (replacing <identifier> for the actual identifier I want to rename. The dialog has no replacement name field and the refactor & preview button are disabled.
At first, I thought it just didn't like the naming style, but I've tried it on every form of identifier I can find, including a simple text string (no punctuation or special characters) and the same result every time.
I have a *lot* of identifiers that need to be refactored now that the project is maturing. Does anyone have any suggestions on what I can do to make the refactor/rename function work on css/scss identifiers?