Q.spaghetti squash
My Spaghetti Squash plant is growing and I have many blossoms. But the actual squash gets about 1/2 to 1 inch diameter and formed nicely one day and the next day it looks like something sucked the insides out (looks like a yellow raisin). What is wrong?

It sounds like a pollination problem. These articles will help:
https://www.gardeningknowhow.com/ornamental/trees/teak/insect-pollination-process.htm
https://www.gardeningknowhow.com/edible/vegetables/squash/squash-fruit-falling-off-the-plant.htm
https://www.gardeningknowhow.com/edible/vegetables/squash/pollinate-squash-by-hand.htm