Why would someone be held on a no bail if they are not a flight risk never had a FTA ALWAYS SHOWED UP FOR COURT DATES and has a paid attorney

The short answer is "ask the attorney WTF happened". If what you are saying is true, the attorney dropped the ball, big time. But, most times there is another side of the story. The prosecutor probably presented some alarming fact-based theory where evidence or affidavit has given them the tool (with the magistrate) to get a no-bail hold on an individual.