bug: Wayland issue - display empty windows

[Graninius]

Jan version

Jan-beta_0.5.18-rc6-beta_amd64.AppImag

Describe the Bug

The UI doesn't load after update.
ArchLinux, Wayland, Hyprland

Steps to Reproduce

1. Clean install AppImage using AppMan
2. Start Jan
3. Get the window without UI

Screenshots / Logs

What is your OS?

• MacOS
• Windows
• Linux

[david-menloai]

hi @Graninius may I know if this is a VM?
I have the same issue with my VM running on Arch X11
Could not create default EGL display: EGL_BAD_PARAMETER. Aborting...

can you please help share error logs if possible?

[bytesoverflow]

I'm facing the same issue with the nightly AppImage:

[2025-06-18][10:47:22][app_lib::core::setup][INFO] Installing extensions. Clean up: false, Stored version: 0.5.18-rc6-beta, App version: 0.5.18-rc6-beta
[2025-06-18][10:47:22][app_lib::core::setup][ERROR] Failed to run mcp commands: Failed to read config file: No such file or directory (os error 2)
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Clean up function executed, sidecar processes killed.
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Spawning cortex-server (Attempt 1/5)
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries" to "/home/USER/.local/share/Jan-beta/data"
[2025-06-18][10:47:22][app_lib::core::setup][DEBUG] Sidecar command: Command { cmd: LD_LIBRARY_PATH="/tmp/.mount_Jan-bejO5YAn/usr/lib/:/tmp/.mount_Jan-bejO5YAn/usr/lib/i386-linux-gnu/:/tmp/.mount_Jan-bejO5YAn/usr/lib/x86_64-linux-gnu/:/tmp/.mount_Jan-bejO5YAn/usr/lib32/:/tmp/.mount_Jan-bejO5YAn/usr/lib64/:/tmp/.mount_Jan-bejO5YAn/lib/:/tmp/.mount_Jan-bejO5YAn/lib/i386-linux-gnu/:/tmp/.mount_Jan-bejO5YAn/lib/x86_64-linux-gnu/:/tmp/.mount_Jan-bejO5YAn/lib32/:/tmp/.mount_Jan-bejO5YAn/lib64/::/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries" "/tmp/.mount_Jan-bejO5YAn/usr/bin/cortex-server" "--start-server" "--port" "39291" "--config_file_path" "/home/USER/.local/share/Jan-beta/data/.janrc" "--data_folder_path" "/home/USER/.local/share/Jan-beta/data" "--cors" "ON" "--allowed_origins" "http://localhost:3000,http://localhost:1420,tauri://localhost,http://tauri.localhost" "config" "--api_keys" "REDACTED_API_KEY", raw_out: false }
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines" to "/home/USER/.local/share/Jan-beta/data/engines"
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp"
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-avx-x64" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-avx-x64"
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Cortex server spawned successfully. PID: 551305
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-avx-x64/b5509" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-avx-x64/b5509"
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-avx2-cuda-cu11.7-x64" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-avx2-cuda-cu11.7-x64"
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-avx2-cuda-cu11.7-x64/b5509" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-avx2-cuda-cu11.7-x64/b5509"
[2025-06-18][10:47:22][app_lib::core::setup][INFO] [Cortex Terminated]: Signal Some(15), Code None
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Cleared child process lock after termination.
[2025-06-18][10:47:22][app_lib::core::setup][WARN] Cortex server terminated unexpectedly.
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Waiting 5000ms before attempting restart 1/5...
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-avx2-cuda-cu12.0-x64" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-avx2-cuda-cu12.0-x64"
[2025-06-18][10:47:22][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-avx2-cuda-cu12.0-x64/b5509" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-avx2-cuda-cu12.0-x64/b5509"
[2025-06-18][10:47:23][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-avx2-x64" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-avx2-x64"
[2025-06-18][10:47:23][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-avx2-x64/b5509" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-avx2-x64/b5509"
[2025-06-18][10:47:23][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-avx512-x64" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-avx512-x64"
[2025-06-18][10:47:23][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-avx512-x64/b5509" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-avx512-x64/b5509"
[2025-06-18][10:47:23][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-noavx-cuda-cu11.7-x64" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-noavx-cuda-cu11.7-x64"
[2025-06-18][10:47:23][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-noavx-cuda-cu11.7-x64/b5509" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-noavx-cuda-cu11.7-x64/b5509"
[2025-06-18][10:47:24][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-noavx-cuda-cu12.0-x64" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-noavx-cuda-cu12.0-x64"
[2025-06-18][10:47:24][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-noavx-cuda-cu12.0-x64/b5509" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-noavx-cuda-cu12.0-x64/b5509"
[2025-06-18][10:47:24][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-noavx-x64" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-noavx-x64"
[2025-06-18][10:47:24][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-noavx-x64/b5509" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-noavx-x64/b5509"
[2025-06-18][10:47:24][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-vulkan-x64" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-vulkan-x64"
[2025-06-18][10:47:24][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries/engines/llama.cpp/linux-vulkan-x64/b5509" to "/home/USER/.local/share/Jan-beta/data/engines/llama.cpp/linux-vulkan-x64/b5509"
[2025-06-18][10:47:26][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/resources" to "/home/USER/.local/share/Jan-beta/data"
[2025-06-18][10:47:26][app_lib::core::setup][INFO] Copying from "/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/resources/pre-install" to "/home/USER/.local/share/Jan-beta/data/pre-install"
[2025-06-18][10:47:27][app_lib::core::setup][INFO] Spawning cortex-server (Attempt 2/5)
[2025-06-18][10:47:27][app_lib::core::setup][DEBUG] Sidecar command: Command { cmd: LD_LIBRARY_PATH="/tmp/.mount_Jan-bejO5YAn/usr/lib/:/tmp/.mount_Jan-bejO5YAn/usr/lib/i386-linux-gnu/:/tmp/.mount_Jan-bejO5YAn/usr/lib/x86_64-linux-gnu/:/tmp/.mount_Jan-bejO5YAn/usr/lib32/:/tmp/.mount_Jan-bejO5YAn/usr/lib64/:/tmp/.mount_Jan-bejO5YAn/lib/:/tmp/.mount_Jan-bejO5YAn/lib/i386-linux-gnu/:/tmp/.mount_Jan-bejO5YAn/lib/x86_64-linux-gnu/:/tmp/.mount_Jan-bejO5YAn/lib32/:/tmp/.mount_Jan-bejO5YAn/lib64/::/tmp/.mount_Jan-bejO5YAn/usr/lib/Jan-beta/binaries" "/tmp/.mount_Jan-bejO5YAn/usr/bin/cortex-server" "--start-server" "--port" "39291" "--config_file_path" "/home/USER/.local/share/Jan-beta/data/.janrc" "--data_folder_path" "/home/USER/.local/share/Jan-beta/data" "--cors" "ON" "--allowed_origins" "http://localhost:3000,http://localhost:1420,tauri://localhost,http://tauri.localhost" "config" "--api_keys" "REDACTED_API_KEY", raw_out: false }
[2025-06-18][10:47:27][app_lib::core::setup][INFO] Cortex server spawned successfully. PID: 551329
[2025-06-18][10:47:27][app_lib::core::setup][INFO] Cortex server started successfully, resetting restart count from 1 to 0.
Could not create default EGL display: EGL_BAD_PARAMETER. Aborting...