MRUKSample Anchor not working on Quest 3

[Merichbier]

Hi there, we deployed the MRUKSample app on a Quest 3 and tested the anchor sample.

The device was not able to load the scene from the device:

2026-02-24 10:57:21.164  7846-8098  [CT]                    com.meta.spatial.samples.mruksample  I  RuntimeIpcHelper: RuntimeIpcClient::CALL_RPC isAsync: true, func: discoverSpaces
2026-02-24 10:57:21.164  3780-8104  [CT]                    com...k.spatial_persistence_service  E  SP:AP:AnchorPersistenceRuntimeIpcServer: Package com.meta.spatial.samples.mruksample is not trusted, status:PackageTrustedStatus::UNTRUSTED(1), sessionUuid:3debc346-36e4-0cd6-4ce0-b641c3f1104a
2026-02-24 10:57:21.164  3780-8104  [CT]                    com...k.spatial_persistence_service  E  SP:AP:AnchorPersistenceRuntimeIpcServer: RPC not allowed for discoverSpacesV2 due to AnchorResultCode::ERROR_PACKAGE_UNTRUSTED(-10035) for package name com.meta.spatial.samples.mruksample
2026-02-24 10:57:21.165  7846-8098  [CT]                    com.meta.spatial.samples.mruksample  E  RuntimeIpcHelper: Failed RPC for discoverSpaces, rpcAllowed: false, CallServerRPCResult: 0, isAsync: true
2026-02-24 10:57:21.165  7846-7963  [CT]                    com.meta.spatial.samples.mruksample  E  SP:AF:InsightAnchorApi: DiscoverSpaces: DiscoverSpaces failed to complete successfully, code:AnchorResultCode::ERROR_PACKAGE_UNTRUSTED(-10035)
2026-02-24 10:57:21.165  7846-7963  [CT]                    com.meta.spatial.samples.mruksample  E  SP:AnchorResultCode: anchorDiscoveryResultCodeToXrResult: Unknown mapping for AnchorResultCode!

The permission to access the rooms data was given. It works fine on a Quest Pro.

Any idea what the issue is ?