Surface App crashes when Bluetooth is ON — SP11 / Windows 11 24H2 / No BT devices

Question

I’m encountering a consistent issue on my Surface Pro 11 (Intel Ultra 7, 32GB) where the Surface app crashes immediately on launch when Bluetooth is enabled, even if no devices are paired.

System details:

• Windows 11 Version 24H2 (Build 26100.1742)

Surface App version: Microsoft.SurfaceHub_75.4100.123.0

Bluetooth driver: Intel Bluetooth 23.120.0.4

Surface Firmware: 25.032.26502.0 (April 2024 MSI)

Steps to reproduce:

Turn Bluetooth ON

Launch Surface app

Crash occurs instantly

If Bluetooth is OFF, the Surface app runs without issue. There are no paired devices at all. This appears to be a software bug inside the Surface app’s device polling logic, likely related to twinapi.appcore.dll.

Event Viewer:

yamlCopyEditFaulting application name: SurfaceApp.exe, version: 75.4100.123.0
Faulting module name: twinapi.appcore.dll
Exception code: 0xc000027b

I have fully updated Windows, firmware, and Intel drivers. This seems to be a Surface app bug introduced in recent builds. Can Microsoft confirm and patch?I’m encountering a consistent issue on my Surface Pro 11 (Intel Ultra 7, 32GB) where the Surface app crashes immediately on launch when Bluetooth is enabled, even if no devices are paired.

System details:

Windows 11 Version 24H2 (Build 26100.1742)

Surface App version: Microsoft.SurfaceHub_75.4100.123.0

Bluetooth driver: Intel Bluetooth 23.120.0.4

Surface Firmware: 25.032.26502.0 (April 2024 MSI)

Steps to reproduce:

Turn Bluetooth ON

Launch Surface app

Crash occurs instantly

If Bluetooth is OFF, the Surface app runs without issue. There are no paired devices at all. This appears to be a software bug inside the Surface app’s device polling logic, likely related to twinapi.appcore.dll.

Event Viewer:

yamlCopyEditFaulting application name: SurfaceApp.exe, version: 75.4100.123.0
Faulting module name: twinapi.appcore.dll
Exception code: 0xc000027b

I have fully updated Windows, firmware, and Intel drivers. This seems to be a Surface app bug introduced in recent builds. Can Microsoft confirm and patch?

Answer 1

Dear Milian,Reports indicate a recurring crash of the Surface App on the Surface Pro 11 running Windows 11 24H2 when Bluetooth is enabled. The issue, as detailed by user Milan Burian and corroborated by at least one other user, points to a potential software bug within the Surface App's interaction with Bluetooth services.

Event Viewer logs consistently point to twinapi.appcore.dll as the faulting module, with an exception code of 0xc000027b. This suggests a problem in how the Surface App is handling a core Windows API related to application functionality, likely triggered by its device polling logic for Bluetooth peripherals.

Best Regards,

Answer 2

Please use the Feedback Hub app to file a problem report and allow it to collect details as you repro the issue while filing the report. This is the way to get the details to engineering. Also check for similar reports in the Feedback Hub and add your comments there as well.