Its probably not the glue, sounds like a defect in the tire. The glue will spread out evenly with the pressure from the tire.
Rotate the tire and see if the hump is from something between the rim and the tire (easy to see). If it is, take off the tire and find out whats in there and reglue, but flip the tire over so the ire doesn't go back on in the same place.
Il faut de l'audace, encore de l'audace, toujours de l'audace
1980 3Rensho-- 1975 Raleigh Sprite 3spd
1990s Raleigh M20 MTB--2007 Windsor Hour (track)
1988 Ducati 750 F1