Really used to love my job but everything seems like a chore right now. Though I don't want to change my career or employer it's a struggle right now to keep motivated.
Its a sign time to move on, even if you don't want to. Otherwise that chore will turn into boredom and it will show in your work that you are no longer motivated.
Had this happen to me last year, was in a job which basically took me back 10 years. Doing the samething just a title change. Didn't work out well in the end and I left after a disagreement with management.
Now in a better job, working on better projects and no longer just an "IT Generalist" with an Senior title.