The End Gateways are not aligned properly. For example, an end gateway should be at (0, 75, 96) but instead it spawns at (-1, 75, 96). We have the same issue in the Z direction portal as well. It also makes the rest of the portals off by one (in either x, z, or both). There are only 6 portals in the correct location. This makes building structures around them uncentered and not a correct circle.
Linked issues
duplicates 1
Comments 3
Duplicate of [MC-151399]
Tested this and the bug seems to also affect 1.15 and 1.15.1.
Also tested 1.9.4 but in that version the end gateways generated correctly.
I'm assuming this is caused by some rounding error. It's a small detail but it's quite frustrating for building structures in the end and I hope it gets fixed before 1.16.