Transaction not yet indexed

55SkbbFSZFvVvXuAgrU1y7VGpK7dMQhzGPrKssWQLTM9vB8avgGTjQQnw9bAs2QZCGLE9V1xZfoLLBmNR9K1fEY2

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