Reply To: on product page while pressing on a color swatch its showing sizes out of stock

Hello,

Increase the value of the “AJAX variation threshold” option to 100 via Theme Settings -> Shop -> Variable products.

https://monosnap.com/file/2nGwDn0t6tFtbMgwg1eV07Y27bf261

Then clear the cache and check the issue again.

Kind Regards