Yes it was isolated case.
There was another case for all TSX symbols due to 1st july off for stock exchange TSX data and we use other than Saturday and Sunday first date as open values so those were missing and we need to be use 2nd july as open values.
I need to add script to skip those holiday dates for open and close data for month start and month end day holidays except Saturday and Sunday.
Can you share stock exchange holidays for US and TSX or I can find latter and can fix up any thing