Summary:
When switching to a spectator, the player does not stop sneaking or crawling. According to the Java version, the player must exit the state of crawling and sneaking.

Steps to reproduce:

1. Sneak or crawl.
2. Enter Spectator Mode.
3. Move left and right.
4. Exit Spectator Mode.

Observed results:
When switching to spectator mode, the player does not exit the crawl and sneak state.
This can be seen from the non-centered head when moving to the right-left and when exiting the spectator mode (especially noticeable for crawling).

Expected results:
The player exits sneaking and crawling when entering spectator mode.

Note:
Also, when crawling in the spectator, the player's head is rendered incorrectly near translucent objects.