Using this commit b7e7412 to build the SDK, my Android client cannot restore a session nor login to an existing one on matrix.org. This may apply to other homeservers.
Here are the interesting logs, when trying to build a Client:
elementx: Failed to set homeserver to https://matrix.org
org.matrix.rustcomponents.sdk.ClientBuildException$ServerUnreachable: builder error
at org.matrix.rustcomponents.sdk.FfiConverterTypeClientBuildError.read(matrix_sdk_ffi.kt:37313)
...
at org.matrix.rustcomponents.sdk.ClientBuilder.build(Unknown Source:0)
If I disable the SSL verification, using ClientBuilder::disableSslVerification(), this is fixing the issue (as a workaround).
Maybe related to #6053, which has just been merged on main.
The issue is quite critical.