Laundry Problem: In-Wash Scent Booster Beads

[The Preserver]

These are the products that are like Downy Unstoppables and Purex Crystals - you know the ones. So I used some of these in a wash cycle on the cold setting. I only put just a wee little bit, and my goodness, they gummed up all the clothes I had in the wash without fully dissolving! Is there actually any way to use these on the cold setting without this ever happening?! Note to self, never use scent booster beads on cold!