When creating more than one portal, they all link to only 1 portal in the nether. (This is a survival world. Do not have a creative Realm world to test in).
First was seen when creating two over world protals close but should have been far enough apart. However they still linked to the same portal in the Nether. Breaking the nether portal (either by removing obsidian or by breaking the nether field in the portal) will allow the second portal to create a new portal in the nether
Assuming that I wasn't far enough away, went for "days" in the over world and create a new base away from the spawn base camp. Creating a portal there again linked back to the start portal in the nether. Returning though the portal resulted back into the original spawn base camp. Breaking the nether portal in this case still created a new nether portal, but one quite a distance away as expected. Hopping through the portal in the base camp jumps to this new portal (not deactivating original portal or creating a new one) and going back through now goes to the new base.
Breaking the "new" nether portal, and jumping back in at the portal made at the new base, creates a new nether portal on top of the original in the nether, instead of reactivating the existing one.
TLRD - multiple over world portals link to a single nether portal, and the single nether portal links to just 1 overworked portal, creating basically one way trips.
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Dr.Awesome4333
migrated
Still works in 0.15.2
migrated
I just checked my realm via 15.2 on my phone. The portal in the main village that was going to the first nether portal i created still jumps to the one from my base far away. I also tried breaking the portal in the over world village, and reactivating it (keeping the further base one active) and it still relinked to that far away nether portal, not the original one that was set up. I don't think this is an issue with the version running on the device. I think this is something to do with the portal generation and linking on the server itself.
migrated
Just tested and there are now two separate portals in the nether that now connect to two separate portals in the over world.
Of note, I had tested my two portals that were close together in the original camp, which created a second portal in the nether (when I deactivated the first one). That original portal in the nether has not gone missing. Not sure if that was done by whatever "fix was put in place or not, but thought worth mentioning. That portal had been deactivated in the nether and wasn't planned on being used, but still thought worth mentioning.
migrated
Please respond and add the current version if you can reproduce this issue.
[Mojang] Mega_Spud (Jay)
This ticket has been resolved as 'Cannot Reproduce' as it has not been updated recently (1 year+)
This happens on my realm too. I made a portal far enough away from the one every one else uses and it links to the same portal in the nether. The one in the nether links back to the one every one else uses.