[MC-312375] Launching the game in windowed mode causes it to render incorrectly with the Vulkan rendering backend

When launching the game in windowed mode first, the game turns into a glitched mess. Changing to fullscreen does fix the issue

Environment

Windows 11 Pro 25H2

Linked issues

is duplicated by 5

MC-312426 GUI rendering becomes corrupted when resizing a window with Vulkan on Intel UHD Graphics Resolved

MC-312478 I have issues when resizing windows that doesn't crash the game this time! Resolved

MC-312511 Minecraft GUI renders incorrectly in windowed mode Resolved

MC-312509 Minecraft's display gets corrupted when minimized Resolved

MC-312527 The screen does not display correctly when not maximized in Vulkan. Resolved

Attachments

Captura de pantalla 2026-10-06 092731.png

Comments 5

kandres_05 2026-10-06T15:38:12Z

kandres_05 2026-10-06T15:39:07Z

McSteve7644 2026-10-06T18:08:27Z

Can confirm.

In fact, it's not fullscreen that makes it normal.

It only appears normal at specific window widths (e.g., 1920px)

This appears to be a Vulkan-only issue, as changing graphics API to OpenGL resolved it.

McSteve7644 2026-10-06T18:19:37Z

Vulkan

OpenGL

VectorKnight1 2026-10-06T19:32:50Z

I personally cannot reproduce this, but it is possible that it only happens in irregular window resolutions. The window resolution for me is 854x480 and 1366x768 on fullscreen so I don’t get the glitch.