Transaction not yet indexed

Mb52EX8hJrRQhuhdzGka8oxyUtS1cVov3Kaggh9ut2tDPBXyxmdZoS7xJ43mApdKvbtLywuS7WqoA25ZG5GiB9w

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.