In Linux Minecraft Java 26.3, when you try to move the crosshair, it moves but then snaps back.
Environment
Linux, Minecraft Java 26.3
In Linux Minecraft Java 26.3, when you try to move the crosshair, it moves but then snaps back.
Linux, Minecraft Java 26.3
Reference MC-312565
Could be same issue raised here. Has the same camera snap on Linux in 26.3, while 26.1.2 seemingly works fine.
Add your distro and if you’re using Wayland, X11, or Xwayland here.