Sulfur Cube Cannot Re-enter Nether Portal After Returning from the Nether

Description: A Sulfur Cube that has been brought from the Nether to the Overworld through a Nether Portal becomes unable to be sent back to the Nether through the same portal.

Steps to Reproduce:

1. Activate a Nether Portal in the Overworld.

2. Travel to the Nether and summon a Sulfur Cube.

3. Lead or push the Sulfur Cube from the Nether back into the Nether Portal to return it to the Overworld.

4. Attempt to lead or push the same Sulfur Cube into a Nether Portal in the Overworld again.

Observed Result: The Sulfur Cube does not get teleported to the Nether upon contacting the portal block for the second time. It remains in the Overworld.

Expected Result: The Sulfur Cube should be teleported to the corresponding location in the Nether each time it enters an active Nether Portal.