Hi!
This has been working like a dream, but recently stopped communicating with the car. Other parts still work like reading instructions, checking spare parts etc. I recently updated Windows 11 from 2025H2 to 2026H2.
Im using a Mongoose JLR bought from d5t5.

Attaching screenshot from trying to press Diagnostics. The swedish parts translates to something like:

Cannot read the file or composition ... or one of its values. A Program Control Principal has blocked this file. (Exemption from HRESULT: 0x800711C7)

Windows also opens a browser tab informing about "Smart App Control".
Edition Windows 11 Pro
Version 26H2
Installdate ‎2025-‎12-‎09
OS-version 26300.9550
Functions Interfacepackage for Windows-functions 1000.26100.372.0

Any known workarounds?