Jeff Hendrick put Derby in front in the 23rd minute after bursting through the middle and playing a good one-two with Jamie Ward.
Ward extended the visitors' lead from the penalty spot three minutes after the break thanks to a Miguel Llera foul.
Michail Antonio pulled a goal back in the 51st minute following a goalmouth scramble and six minutes later Llera equalised after getting his head to a great cross from Antonio.
Jones said: "We didn't really get going. We were sloppy and we were slow in what we were doing and we just looked a bit rushed.
"After giving the penalty away we then started to play and I thought we were going to go on and win it in the end.
"I don't see why we should have to go 2-0 down to start playing. A point was a fair result in the end.
"You give yourself a mountain to climb when you give a penalty away and full credit to everybody in the dressing room because they worked hard and got back into it.
"Everybody showed great character, rolled up their sleeves and got going.
"Confidence was never really low. We lost games we shouldn't have lost. We're competing in a really hard division but it looks like we're back on track and anything is achievable."