This was guaranteed on the wiki page: https://minecraft.gamepedia.com/Ruined_Portal
One example found is:
Seed: [1445190499778711114]
Coordinates: -1207 100 1032
Found on hardcore, double-checked in creative with TNTs (sorry in advance if that's not the best method to check and there is an actual chest). Thanks!
Thank you for your report!
However, we are already tracking this issue, and this report is a Duplicate of MC-182652, which has been marked as Fixed for an upcoming version.
Please use the search function in the future to prevent duplicate reports.
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