Transaction not yet indexed

55Et91yVeJ2jQ8mCbfLuptJSqvg2MbLaR8E4vxPhfL9FfgJx8DVmfhD6P8J66NBGYhXZNHtRNLyPaT3tUDKm4Ss

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