The bug

Projectiles will be instantly teleported through nether portals when passing through them. However, this does not affect players using tridents with Riptide, despite the fact that they become projectiles in this process.

Creative mode is not affected by this issue and displays the behaviour expected of Survival.

How to reproduce

1. Get a riptide trident
2. Boost into a nether portal

Expected results

Instant teleportation.

Actual results

You pass right through.