In Minetest 5.0.0, the player model is sunken into the ground.
This is due to a breaking change in Minetest 5.0.0.
From the changelog:
Attachment and player positions have been shifted by 1 node, to allow support for custom player selection boxes. Fix: update default and player_api, subtract 10 from any attachment positions, shift the origin of player models to the feet
In Minetest 5.0.0, the player model is sunken into the ground.
This is due to a breaking change in Minetest 5.0.0.
From the changelog: