Not sure if anyone answered your problem with squash blooms , but no fruiting.
I think the problem may be pollination ( or maybe use of 'need oil' ..? )
The first blooms on squash plants are male (stamins) , followed later by female blooms (ova) .
You can become the little 'botony bee' by using a fine hair brush , and gathering fresh pollen from the male on the brush.
Then look for a flowering bloom that has a slight bulb (ova)right behind the bloom petals ,and dust lightly with the stamin dust.
Within 2-4 days, you should see the bulb ( ova )begin to double in size .
Vegetable matures in 20 - 45+ days depending on vegetable variety .
Generally this procedure is more productive with musical accompanyment : I reccommend "Flight of the Bumble-bee" by Rimsky-Korsakov :
black slacks with yellow shirt is optional , but humming is recommended .
I have heard of playing pollinator on these threads, but had not tried it, because my squashes were not ever blooming both kinds at once. As I read your post, the thought occurred to me, could I gather the male pollen, and then a day or two later if/when I see female, I can then place it on the newer bloom(s)?
(Love the idea of “Flight of the Bumblebee” and wearing the properly colored clothing with humming.LOL!)
I’ve heard of touching and talking to plants, but not humming classics while breeding squash plants with a paint brush. I’ll share your procedure to one of my community garden friends then stand back and watch.