So I did a bit of research as to what this Segoe UI symbol is, and basically it is a default font that comes with all symbols in windows 7 and later dates.
When in revit I enjoy adding simple symbols by right clicking and adding symbols that way. However what I have discovered is that it does not matter what text I am using (ex. Arial Narrow) The symbol is imported with the default "segoe UI symbol". So for starters it doesn't match anything in my project. But the real issue I am having is that It wont allow me to print anything to PDF if the symbol is on any sheet. Not sure if this is a windows issue or a Revit issue. But any input would be appreciated.
I am currently using two separate text notes (a C and a L ) and overlapping them and grouping it... Seems really inefficient and frustrates me.