Transaction not yet indexed

XMcDzdgdKWGSXZhvdoBumE6MGR4mpVxD7VUK76uAtv4Q1nCUff82xTKRDpgYkQSJCqoCcSvyFTYW5ndcbNnS2Js

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