Entering Nether crashes the world

Did you do something to your nether? Like reset it or do something with the folders?

No, unless moving the over world portal down because it didn't spawn a portal in the nether. Also it didn't crash until updating to this snapshot.

Do you have any data packs on?

None

No but they probably got corrupted

Please attach the world files by uploading them to a third party website and providing a link in this report.

Which website would be best?

One we can download it from.