It’s common for cuttings to not produce roots when temps are cool. If there’s callus where the previous cuts were made, I’d re-cut right across the callus and re-apply root hormone. If the cut ends look dry, I’d re-cut just above the dry section, apply hormone and re-plant.
Considering the weather we’ve been having, after care may be tough. The sun will stimulate rooting, but be careful not to let the cuttings dry out on days when it’s above 70. Daily misting will be good, and reusing the same soil should be no problem.