I am in a similar situation like yours...but different industry. I joined my current employer for a little higher pay and my role now is like junior than what I used to hold at my previous job. Abit regret as the work scope turned out not to be what I expected and the travelling time to and fro workplace and office also longer. Previous job's colleagues are more fun and direct superior was also more accommodating. Well.. I am still hanging on and see whether need to make the next move.