Transaction not yet indexed

xL15ZHNKUBgKqak5GvFuAWkzqf4RSW7GrbANTn1QeYWccuSwQk2AnAykpiX4RbMp1GN1bCHr621SL2x4jvmApvY

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