Transaction not yet indexed

mMUM2Wm7RWTHHM7BEkAkfXDmkygirxtcjTfvv6aUcrUpBEeL6MxAX3BZkKfXuVEwDYpn6kJK4r7a3AbMEwWwcgC

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