Travel issues continued piling up for fliers as flight delays and cancellations topped 10,000 — a tumultuous weekend for holiday travel blamed on staffing shortages, packed planes and the ripple effects from previous bad weather. Last Monday, more than 3,000 flights within, into, or out of the U.S.  were delayed and about 370 flights canceled, as of 5 p.m. ET, according to FlightAware. TSA…