Transaction not yet indexed

28Ps6pFMxqcCeoGAhjcucqRJijawjW8LSHe5RRa6SG8mhuPGVzLXzhVtch9zbXrBEc3gMmTBt4EFTqfTwChR3Sm4

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