Tamed Pet (wolf) disappears when player 2 enters nether portal

During local play / split screen player 2 has a tamed wolf. We both enter the nether and the wolf disappears. I tried `/tp @e[name=Name] @p` but no entity could be found. We tamed a second wolf and tried again with the same results.

I (player 1) was able to bring my tamed wolf through the nether portal without issue however at the time I was not playing split screen.