Transaction not yet indexed

5C21jgRe8WMcXHWsi6WLGtc7ozxfErKd8LV5FuquCqi4do9LvjsTY9NfLsV7vD7X8BSCMPeDWnRgDdumiuNWJFun

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