Strange...I haven't had or heard of any issues. They are the same "green" super soft compound used for all of our tires. What did you use to clean/prep the tires before gluing and what type of glue?
I cleaned/ prepped the same way I always have. Motor spray on the included foams, cut off the extra molding parts let them dry used your tire bands and then glued them using the thin ca glue you get at your lhs in the clear bottle with a blue label. The glue just seemed to run off of the bead and get next to no tackiness. It happened on both pairs. After the first tire I re- cleaned the other three with no change.