The bug
When normally creating a debug world, the player is put in spectator mode: they can look, but can't touch. In the 1.17 snapshots, this is still the case.
However, now, the game mode for a debug world is not shown as "Spectator" on the world creation screen. In previous versions, this was correctly shown as "Spectator".
When generating the world, as said above, the player is put into spectator mode correctly.
This issue relates to MC-205076, but I am reporting it separately, as spectator mode is not part of the order described in MC-205076. Additionally, the text shown on the world creation screen is different than the actual behaviour, which is not the case in MC-205076.
How to reproduce
Open Minecraft -> Singleplayer -> Create New World -> More World Options...
Hold down the alt key (option) while toggling the World Type button, until you reach Debug Mode
Click Done
❌ The Game Mode is shown incorrectlyClick Create New World
✔ Your Game Mode is Spectator, as intended
Additional information
A screenshot demonstrating this issue has been attached, taken in snapshot 20w51a:
[media]Linked issues
is duplicated by 4
MC-212786
Gamemode isn't correct in Debug Mode
Resolved
MC-218041
When the selected world type is debug mode, the game mode button in the create world screen displays the same as before debug mode was selected
Resolved
MC-220851
Debug mode Glitch
Resolved
MC-250072
Create World menu shows incorrect gamemode
Resolved
Attachments
Comments 7
The game mode is the same as when you first came onto the world creation screen and selected the game mode. Not always Survival.
The issue fixes itself when toggling fullscreen. But it occurs again after you change the world type to something else. Screenshot attached.
Can confirm. I just assumed it was intentional, but, now, I don't know why it would be.