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I would try giving it some phosphorous. Bone meal is a good source of this. Phosphorous is needed in order for plants to bloom and they may be lacking this.

It is almost impossible for a home grower to get bulbs to bloom on cue. You have to be able to tightly control the environment. We normally recommend that home growers who would like to have plants blooming for a special date plan on planting in waves over the course of a month so that you can guarantee that a certain portion of the bulbs will be blooming at the right time. This article will explain how to grow them for forcing: https://www.gardeningknowhow.com/ornamental/bulbs/crocus/growing-crocus-indoors.htm Once they are removed from chilling, they will bloom in 3-6 weeks.

Too much nitrogen or too little phosphorous can cause this. Use a balanced fertilizer on your lawn rather than the normal high nitrogen fertilizer recommend for lawns. This should help balance it back out.

This article has some interesting information on autumn crocus. https://www.gardeningknowhow.com/ornamental/bulbs/crocus/autumn-crocus-growing.htm
The corms' protruding out of the ground is telling you it's time to divide and conquer.

All types will naturalize, though with tulips and some daffodils, you may want to look for heirloom varieties. For more information on naturalizing bulbs, this article should help: https://www.gardeningknowhow.com/ornamental/bulbs/bgen/naturalizing-flower-bulbs.htm

I would try giving the plants some phosphorous. Bone meal is a good source of this. Phosphorous is needed in order for plants to bloom and being in pots, they may be lacking this.