Transaction not yet indexed

1SYM2YJ6mLnCe6pYRFvzE8g5KUPqReULVkDVTy5pAEaXPc5bfsdc2GxXi5iQYHRCqWXS18iCwsV7XV3JKZR9vkR

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