The bulbs may have been babies when first planted and not ready to bloom. I would replant and let them try again next year. They should continue to form roots for the rest of the season. Next season, whether they bloom or not, they will hopefully still produce foliage which should be allowed to die down naturally, as that will help increase the bulb size for the next season. You can leave the little bulblets as that is how they naturalize to give you new adult bulbs in a few years.

In general, you should try to have them in friable, loose, and free-draining soil (not heavy) to help ensure that the bulbs won't rot. Seems the tiny bulbs tend to rot more easily.

Thanks for your help!

Elbereth

Good luck! I like to try to plant early bloomers like crocuses so that I can have something out there to remind me that spring is on the way! I am considering getting some snow drops to plant for next year.