Transaction not yet indexed

xM18cWhdgck8dXTYYXnywt1j3cagmg2tNAA296Du2cEY2mkySy91Jp1vmu6QMDgn5g5R2rP1qnLyp8tEd4GoyCr

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