I cant find the end portal where the eyes lead me.

So basically, i have this world. This world has mostly everything that i need, ive built on it, gotten netherite, enchanted my armor and weapons really well. All too prepare for future battles. I go to find the end portal, follow the eyes of ender, make it there, dig down and its not there. The end portals not there, soo i get my friend we make a copy and use tnt too find it. But we never did, so i thought it was sum sorta bug and here i am.