I also experience this issue on NixOS running KDE Wayland 6.5.5 with the 0.0.8 AppImage.
hayley@main ~/Downloads> appimage-run fluxer-stable-0.0.8-x86_64.AppImage
fluxer-stable-0.0.8-x86_64.AppImage installed in /home/hayley/.cache/appimage-run/19da012be67f776aae10863c20d338210cb9b73cc804133edc28095d09f4a80c
18:51:35.870 › Configured user data storage {
channel: 'stable',
directory: 'fluxer',
path: '/home/hayley/.config/fluxer'
}
18:51:35.925 › App ready, initializing...
18:51:37.641 › Restored window bounds: { x: 0, y: 0, width: 1450, height: 1154, isMaximized: false }
18:51:37.659 › Electron's autoUpdater does not support the 'linux' platform. Ref: https://www.electronjs.org/docs/latest/api/auto-updater#platform-notices
18:51:37.661 › App initialized successfully
18:51:37.665 › [RPC] Server listening on http://127.0.0.1:21863
18:51:37.665 › [WS Proxy] Server listening on ws://127.0.0.1:21865
18:51:37.665 › [API Proxy] Server listening on http://127.0.0.1:21861/proxy
18:51:37.666 › [Media Proxy] Server listening on http://127.0.0.1:21867/media
[1921438:0219/185137.689222:ERROR:ui/ozone/platform/wayland/host/wayland_wp_color_manager.cc:273] Unable to set image transfer function.
[1921438:0219/185137.689234:ERROR:ui/ozone/platform/wayland/host/wayland_wp_color_manager.cc:191] Failed to populate image description for color space {primaries:BT709, transfer:SRGB, matrix:RGB, range:FULL}
(node:1921438) electron: Failed to load URL: https://web.fluxer.app/ with error: ERR_CONNECTION_RESET
(Use `fluxer --trace-warnings ...` to show where the warning was created)
Failed to load app URL: Error: ERR_CONNECTION_RESET (-101) loading 'https://web.fluxer.app/'
at rejectAndCleanup (node:electron/js2c/browser_init:2:79946)
at WebContents.finishListener (node:electron/js2c/browser_init:2:80108)
at WebContents.emit (node:events:519:28) {
errno: -101,
code: 'ERR_CONNECTION_RESET',
url: 'https://web.fluxer.app/'
}
[1921438:0219/185138.326832:ERROR:ui/ozone/platform/wayland/host/wayland_wp_color_manager.cc:273] Unable to set image transfer function.
[1921438:0219/185138.326841:ERROR:ui/ozone/platform/wayland/host/wayland_wp_color_manager.cc:191] Failed to populate image description for color space {primaries:BT709, transfer:SRGB, matrix:RGB, range:FULL}
[1921438:0219/185138.326845:ERROR:ui/ozone/platform/wayland/host/wayland_wp_color_management_surface.cc:63] Failed to get image description for color space.
18:51:45.094 › Saved window bounds: { x: 0, y: 0, width: 1450, height: 1125, isMaximized: false }
hayley@main ~/Downloads [SIGINT]>
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Comment by @PartlyAwesome