Greetings all!

Having issues in a drawing with Line Styles..They are all presenting as a style I do not want (ref image 1), but at the same time, are indicated as SOLID (ref image 2)...

I understand the "A,12" is assigning the dash, but what option do we use to indicate NO DASH (e.g., a solid line)...I've tried "0" and "100"...but it doesn't work either and i cant leave it blank, as I get an error (ref image 3)...and I see no matrix to use as a reference...

Please advise!!