View Enclosure on Mini X+ does not recognize Special Vdev

In TrueNAS 12.0-RELEASE, if I create a pool with a Metadata Vdev on my SSDs, the "View Enclosure" page still shows the SSDs as "Avalable", not part of a pool, and it refuses to report the error statistics. The Pool Status page nonetheless confirms that they are part of the pool. On the other hand, if I rebuild the pool and use the same SSDs for SLOG/L2ARC instead of Metadata, then all the drives appear as "Online" in View Enclosure. The attached screenshots are from the config with the SSDs used for Metadata. Thanks very much for your help!