Having an issue on our realm where nether portals aren't teleporting correctly.

It seems roughly 50.50 as to whether it takes you to the correct portal in the nether, or instead takes you to the same coordinates in the nether as in the overworld.

For example, if entering a nether portal at 800 100 800 you should appear at 100 100 100 in the nether, but half the time it places you at 800 100 800, with no portal.

If this location is solid blocks then we suffocate to death. If it is over lava then we have a deadly bath time.

This happens both when entering or exiting the nether.

Looking back through the history this seems to be an old bug that was resolved, but appears to have come back with a vengance in the newest update.

Please advise =]