After 14.1 upgrade GL and FS Designer no longer recognize were my custom FS are located

Just upgraded to 14.1 and now GL and FS Designer no longer recognize were my custom FS are located even though the correct location carried over in "file locations menu"  Need guidance how to map them back. When i go to create a new FS group and just add my custom FS back it says "Unable to open file to write new FS group name."