Trial chamber maps no showing trial chamber location

What I expected to happen was...:

I played on a Default Map in my hardcore world

it should show the Trial spawn

What actually happened was...:

I used my 84 emeralds for a Trial map and when i opened the map, there wont show where the Trial spawn is.

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. buy a Trial Map
3. than use it

• seed 7016412757866594550
• coordinate 1187 76 6611