Transaction not yet indexed

AMBiFbMDc1qiAkbi4y4P9m75zRxBmnLmauucWtqdJHbdAcyT2BwHxLsfUV1wdLujWF18X6G5cDH8bGVvgoY8XSX

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