System Status:
Advanced Custom Fields Version 5.8.7
WordPress Version 5.3.2
Theme Kunco

I am having too many fields on the product page so I have used ACF to create all the fields and mapped them on the frontend, however I am not able to publish my product in a particular case wherein the error shows up, but in some other case the product gets published. I have attached both the cases screenshots.

Extremely long screenshots – so providing links instead of posting images*

This is the case where it works extremely fine:
https://i.stack.imgur.com/6GJ61.jpg

This is another case where it doesn’t get published:
https://i.stack.imgur.com/wvVXF.jpg