MacOS: 2026.516.143833 到 2026.906.222525 之间的性能下降非常大

Is there an existing issue for this? - [x] I have searched the existing issues - [x] I have read the documentation - [x] Is your issue present in the latest beta/pre-release? This issue is present in the latest pre-release - Describe the Bug This issue was noticed in v2026.906.222525, and I upgraded to the latest, v2026.912.143204, to confirm it is still there. (It is.) Using Sunshine on MacOS 26, Moonlight on Linux. The only changes between my older, working configuration and the current one are: * Upgrading to the latest version of Sunshine; and * Deleting Sunshine credentials and starting fresh because I lost my password. In version v2026.516.143833, Sunshine/Moonlight were quite usable as a desktop environment on my LAN. Some latency with the pointer, but otherwise perfectly acceptable. Upon upgrade to .906, frame rates probably dropped by half or more. It's no longer very usable. I am also getting the "Reduce your bitrate" message on-screen constantly, whereas before it popped up only occasionally. I don't have a log from .516, but I have attached a full log from .912. It's full of "Error: Encoder did not produce IDR frame when requested!" four times per second during use. sunshine-log-2026-09-12.txt Please let me know if more information would be helpful. - Expected Behavior I expected similar performance. - Additional Context I don't know if it's related (but since it is a video quirk): the context menu on the menubar icon is now doubled/shadowed, like this: This didn't happen in .516. Only the image in the rear is responsive. - Host Operating System macOS - Operating System Version MacOS Sequoia 15.7.5 (24G624) - Architecture arm64/aarch64 - Package macOS - dmg - GPU Type Apple Silicon - GPU Model M1 - GPU Driver/Mesa Version Whatever MacOS has - Capture Method AVCaptureScreen (macOS) - Apps json - Log output ```shell [2026-09-12 13:25:06.698]: Info: Sunshine version: 2026.912.143204 commit: fbf12d019c16c6f8ff6fb4aaff8519d74e298fdf [2026-09-12 13:25:06.699]: Info: Package Publisher: LizardByte [2026-09-12 13:25:06.699]: Info: Publisher Website: https://app.lizardbyte.dev [2026-09-12 13:25:06.699]: Info: Get support: https://app.lizardbyte.dev/support [2026-09-12 13:25:06.718]: Info: Currently available display devices: [ { "device_id": "macos-cg-6cbd70d55c5254cf", "display_name": "1", "edid": null, "friendly_name": "1", "info": { "hdr_state": null, "origin_point": { "x": 0, "y": 0 }, "primary": true, "refresh_rate": { "type": "rational", "value": { "denominator": 1, "numerator": 60 } }, "rotation": 0, "screen_size": { "width": 2560, "height": 1440 }, "type": "cg", "video_mode": { "aspect_ratio": 16/9, "color_space": "sRGB", "color_depth": 32, "color_type": "rgb", "refresh_rate": { "type": "rational", "value": { "denominator": 1, "numerator": 60 } }, "width": 2560, "height": 1440 } } }, { "device_id": "macos-cg-6cbd70d55c5254cf", "display_name": "2", "edid": null, "friendly_name": "2", "info": { "hdr_state": null, "origin_point": { "x": 0, "y": 0 }, "primary": false, "refresh_rate": { "type": "rational", "value": { "denominator": 1, "numerator": 60 } }, "rotation": 0, "screen_size": { "width": 2560, "height": 1440 }, "type": "cg", "video_mode": { "aspect_ratio": 16/9, "color_space": "sRGB", "color_depth": 32, "color_type": "rgb", "refresh_rate": { "type": "rational", "value": { "denominator": 1, "numerator": 60 } }, "width": 2560, "height": 1440 } } } ]