I brought the eggs to the castle by picking them up with silk touch. The host beach where the eggs were made was maybe 2000 blocks away
I bred it in a corner of the castle on some sand with a couple blocks of water, grew it, and then a couple days later lured it to the tank.
I made it private since is was flagged as incomplete (Sorry I am new here and I should have read the rules better.)
No crash singleplayer not corrected for both
Try it out using this setup for proof.
Confirmed, this is still an issue in 1.11.1 on a realm.