Are you sure the input (on TX which never broadcasted) still exist?
Generally, Dogecoin is an abandoned project, I'm surprised you accomplished on syncing your node.
Dogecoin isn't abandoned, however there aren't many development activity on popular open-source DOGE software (such as Dogtecoin Core) and the community generally don't care about it.
To me, it was never syncing. (1kbs/sec ↓)
Maybe it's because Dogecoin DNS seed isn't reliable. I would try add node from public list such as
http://thenodeslist.com/nodes/dogecoin.htm and
https://opreturn.net/dogecoin/node/ even though few of them might be spy node.