Has anyone had issues with huggies little snugglers fitting and holding good in one size but not the next size up?

Aurora wore them in newborn and 1s and never had a leak out at all. I just switched her to 2s and she's leaked through 5 diaper so far within 30 min of having the diapers being on with most on the content coming out of the diaper. Idk if I should put her back in 1s for alittle longer (they were alittle snug but still fit) or try a different kind of diaper. Just sucks because I have a big box of the diapers.