Robot_005
Assigned
Reported
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MC-312597
Rails and corals on honey blocks break when moved by a piston
Community Consensus
MC-312210
Switching windows while in Fullscreen mode automatically minimizes the game
Works As Intended
MC-311772
The "Reduce fps when" option now inconsistently limits the framerate across display modes when the game loses focus
Works As Intended
MC-311714
Players no longer immediately benefit from the "Reduce fps when" option being set to "Minimized" when playing with the "Exclusive Fullscreen" option enabled and then switching focus
Fixed
MC-311684
IME popup appears after closing chat with CJK active
Duplicate
MC-306741
Opening the chat forces a CJK input method when one is enabled in the system
Fixed
MC-278911
When I open the menu screen, the background darkens and looks bad
Invalid
MC-278910
Background Blur is not reflected in inventory or when chests are opened
Duplicate
MC-262621
Creepers will not explode in (moving) pistons
Confirmed
MC-163978
Mobs can spawn on moving blocks
Fixed
Comments
This issue is a duplicate of MC-311297.
This problem really needs to be fixed before the major release.
This can still be reproduced in 26.3 Release Candidate 2.
This is a critical bug that directly hinders the Minecraft gameplay experience.
This issue can still be reproduced in 26.3 Release Candidate 1.
This is a significant issue that should be fixed before the major update release. If released in its current state, a larger number of players will likely express dissatisfaction, which may force a fix in a subsequent hotfix.
Looking at the issues that were previously marked as duplicate, it is already clear how many players have been reporting this problem even at this stage.
This issue is closely related to MC-311714.
In Fullscreen with Exclusive Fullscreen ON, players have no way to actually minimize the window. Because of this, the behavior was changed so that FPS is reduced even without being minimized when switching windows.
I believe this behavior should be applied to all other display modes as well for consistency. It makes little sense for FPS reduction to trigger on task switch only when Exclusive Fullscreen is ON, while failing to do so in Windowed mode or with Exclusive Fullscreen OFF.
Thank you for checking.
Yes, I understand that actually minimizing the window works as intended. However, the core issue I am pointing out is the inconsistency when using Alt+Tab:
Fullscreen with Exclusive Fullscreen ON: Pressing Alt+Tab reduces FPS (even though the window is not minimized).
Fullscreen with Exclusive Fullscreen OFF & Windowed mode: Pressing Alt+Tab does NOT reduce FPS.
If "Minimized" strictly meant true minimization, then Alt+Tab under Exclusive Fullscreen ON shouldn't reduce FPS either. Since Alt+Tab does trigger the FPS reduction under Exclusive Fullscreen ON, it makes no sense for Windowed mode and Exclusive Fullscreen OFF to behave differently when unfocused via Alt+Tab.
Furthermore, the name of the setting itself is misleading. Since FPS is now limited when the window loses focus in Exclusive Fullscreen mode, naming it "Minimized" no longer accurately describes its behavior.
The option should either be renamed to something like "Reduce FPS when: Unfocused" (or "Not in Foreground"), or its behavior should be updated to consistently work across all display modes when switching tasks.
In 26.3 pre3, FPS is now limited when another window comes to the foreground while Exclusive Fullscreen is ON in Fullscreen mode. However, this does not work when Exclusive Fullscreen is OFF in Fullscreen mode, nor in Windowed mode. This behavior is inconsistent and needs to be fixed. Please reopen this ticket.
This can be reproduced even with Exclusive Fullscreen OFF. Regardless of whether it is ON or OFF, it does not function at all in fullscreen.
This doesn't seem related to this bug. I was able to reproduce MC-311684 from 26.3 snapshot 9 onward, so something likely changed in snapshot 9.
The flickering issue appears to be properly resolved, but a separate issue has surfaced.
Type characters in Japanese > IME candidate box flickers > Press Space > Minecraft's custom candidate box appears, and IME candidates disappear
@Fantastime
This issue does not occur with Microsoft IME. However, it happens when using other IMEs (confirmed with Google Japanese Input).
Can confirm in 26.3 Snapshot 6. I was able to reproduce this issue in Japanese as well.
It's fixed! Thank you!
Could you please reconsider the priority? I believe it should be set to "Very Important." This is a very frustrating bug that blocks command inputs.
This can still be confirmed in 26.3.
Most high-efficiency mob farms are portal-based (such as slime, ghast, iron golem, and hostile mob farms like EOL). Because they are so easy to construct and overly efficient, non-portal mob farms are rarely used anymore.