Reloading the current scene when using a separate game window doesn't reopen the game (Wayland)

[enderprism]

Tested versions

• Reproducible in 4.5.stable
• Not reproducible in 4.4.1.stable

System information

Godot v4.5.stable unknown - EndeavourOS #1 SMP PREEMPT_DYNAMIC Mon, 22 Sep 2025 22:08:35 +0000 on Wayland - Wayland display driver, Single-window, 2 monitors - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 4050 Laptop GPU - 12th Gen Intel(R) Core(TM) i5-12450H (12 threads) - 15.32 GiB memory

Issue description

When using a separate window for the game (currently the only option on Wayland), pressing F5 or F6 in the editor or the corresponding buttons in the UI while the game window is open, to reload the played or current scene, stops the game but doesn't restart it.

Steps to reproduce

• Open a scene
• Press Run Current Scene
• Wait for the game window to open
• Press Run Current Scene again
• The game should stop and restart, opening in a new window

Minimal reproduction project (MRP)

godot-reload-scene-issue-mrp_2025-10-02_21-03-46.zip

[enderprism]

the label should be topic:editor

[enderprism]

it would be nice to have a fix landing in a hotfix release as this is quite an annoying regression

[CreatedBySeb]

Confirmed on v4.5.stable.official [876b29033] and v4.6.dev.custom_build [06827c91c] but not v4.4.1.stable.official [49a5bc7b6] when using Wayland. Also occurs with the main Run button, not just Run Current Scene. Also occurs on v4.6.dev.custom_build [06827c91c] when using X11.

Godot v4.6.dev (06827c91c) - Pop!_OS 22.04 LTS on Wayland - X11 display driver, Multi-window, 2 monitors - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 3060 (nvidia; 575.64.05) - AMD Ryzen 7 3700X 8-Core Processor (16 threads) - 31.28 GiB memory

Godot v4.6.dev (06827c91c) - Pop!_OS 22.04 LTS on X11 - X11 display driver, Multi-window, 2 monitors - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 3060 (nvidia; 575.64.05) - AMD Ryzen 7 3700X 8-Core Processor (16 threads) - 31.28 GiB memory