Strange clipping behavior in vulkan demo

[maxbol]

When compiling/running the glfw_vulkan demo on NixOS 25.05 with the glfw, vulkan-loader, and vulkan-headers packages installed, I get the following weird clipping behavior:

https://github.com/user-attachments/assets/1cf0b0f8-c175-498c-a9a6-0cef219253fe

For comparison, the glfw_opengl4 demo works perfectly for me.

I am sometimes getting a bunch of warnings like this from the validation layer:

Swapchain image 2 was presented but was not re-acquired, so VkSemaphore 0x310000000031 may still be in use and cannot be safely reused with image index 3.
Vulkan insight: One solution is to assign each image its own semaphore. Here are some common methods to ensure that a semaphore passed to vkQueuePresentKHR is not in use and can be safely reused:
        a) Use a separate semaphore per swapchain image. Index these semaphores using the index of the acquired image.
        b) Consider the VK_EXT_swapchain_maintenance1 extension. It allows using a VkFence with the presentation operation.
The Vulkan spec states: Each binary semaphore element of the pSignalSemaphores member of any element of pSubmits must be unsignaled when the semaphore signal operation it defines is executed on the device (https://docs.vulkan.org/spec/latest/chapters/cmdbuffers.html#VUID-vkQueueSubmit-pSignalSemaphores-00067)
validation layer: vkQueueSubmit(): pSubmits[0].pSignalSemaphores[0] (VkSemaphore 0x310000000031) is being signaled by VkQueue 0x1eb83170, but it may still be in use by VkSwapchainKHR 0x50000000005.
Here are the most recently acquired image indices: 0, 1, 2, [3], 4.
(brackets mark the last use of VkSemaphore 0x310000000031 in a presentation operation)

Sometimes these warnings does not show up. In either case, the demo is broken in the way shown in the mp4 attached above.

What could this be about?

[maxbol]

vulkaninfo --summary output:

==========
VULKANINFO
==========

Vulkan Instance Version: 1.3.296


Instance Extensions: count = 24
-------------------------------
VK_EXT_acquire_drm_display             : extension revision 1
VK_EXT_acquire_xlib_display            : extension revision 1
VK_EXT_debug_report                    : extension revision 10
VK_EXT_debug_utils                     : extension revision 2
VK_EXT_direct_mode_display             : extension revision 1
VK_EXT_display_surface_counter         : extension revision 1
VK_EXT_headless_surface                : extension revision 1
VK_EXT_surface_maintenance1            : extension revision 1
VK_EXT_swapchain_colorspace            : extension revision 5
VK_KHR_device_group_creation           : extension revision 1
VK_KHR_display                         : extension revision 23
VK_KHR_external_fence_capabilities     : extension revision 1
VK_KHR_external_memory_capabilities    : extension revision 1
VK_KHR_external_semaphore_capabilities : extension revision 1
VK_KHR_get_display_properties2         : extension revision 1
VK_KHR_get_physical_device_properties2 : extension revision 2
VK_KHR_get_surface_capabilities2       : extension revision 1
VK_KHR_portability_enumeration         : extension revision 1
VK_KHR_surface                         : extension revision 25
VK_KHR_surface_protected_capabilities  : extension revision 1
VK_KHR_wayland_surface                 : extension revision 6
VK_KHR_xcb_surface                     : extension revision 6
VK_KHR_xlib_surface                    : extension revision 6
VK_LUNARG_direct_driver_loading        : extension revision 1

Instance Layers: count = 6
--------------------------
VK_LAYER_KHRONOS_validation       Khronos Validation Layer     1.3.296  version 1
VK_LAYER_MESA_device_select       Linux device selection layer 1.4.303  version 1
VK_LAYER_VALVE_steam_fossilize_32 Steam Pipeline Caching Layer 1.3.207  version 1
VK_LAYER_VALVE_steam_fossilize_64 Steam Pipeline Caching Layer 1.3.207  version 1
VK_LAYER_VALVE_steam_overlay_32   Steam Overlay Layer          1.3.207  version 1
VK_LAYER_VALVE_steam_overlay_64   Steam Overlay Layer          1.3.207  version 1

Devices:
========
GPU0:
        apiVersion         = 1.4.305
        driverVersion      = 25.0.7
        vendorID           = 0x1002
        deviceID           = 0x15bf
        deviceType         = PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU
        deviceName         = AMD Radeon 780M (RADV PHOENIX)
        driverID           = DRIVER_ID_MESA_RADV
        driverName         = radv
        driverInfo         = Mesa 25.0.7
        conformanceVersion = 1.4.0.0
        deviceUUID         = 00000000-c400-0000-0000-000000000000
        driverUUID         = 414d442d-4d45-5341-2d44-525600000000
GPU1:
        apiVersion         = 1.4.305
        driverVersion      = 25.0.7
        vendorID           = 0x1002
        deviceID           = 0x7480
        deviceType         = PHYSICAL_DEVICE_TYPE_DISCRETE_GPU
        deviceName         = AMD Radeon RX 7700S (RADV NAVI33)
        driverID           = DRIVER_ID_MESA_RADV
        driverName         = radv
        driverInfo         = Mesa 25.0.7
        conformanceVersion = 1.4.0.0
        deviceUUID         = 00000000-0300-0000-0000-000000000000
        driverUUID         = 414d442d-4d45-5341-2d44-525600000000
GPU2:
        apiVersion         = 1.4.305
        driverVersion      = 0.0.1
        vendorID           = 0x10005
        deviceID           = 0x0000
        deviceType         = PHYSICAL_DEVICE_TYPE_CPU
        deviceName         = llvmpipe (LLVM 19.1.7, 256 bits)
        driverID           = DRIVER_ID_MESA_LLVMPIPE
        driverName         = llvmpipe
        driverInfo         = Mesa 25.0.7 (LLVM 19.1.7)
        conformanceVersion = 1.3.1.1
        deviceUUID         = 6d657361-3235-2e30-2e37-000000000000
        driverUUID         = 6c6c766d-7069-7065-5555-494400000000