Project Engineer Confusion

I’m about a year into working for a big GC, although our division is a little smaller within the company. Nonetheless, I’ve been on 3 projects, none were too lengthy. Felt like I handled everything well on my end, although my PM hasn’t shown much of any appreciation for the busy work I completed throughout the duration of all of them. For example, running surveys for checks, constantly fixing and approving foreman timesheets, putting together in-house and federal submittals. We are kind of in between projects, or at least I am, and it seems like he has had nothing to do for me in almost a month. Is it normal to just have nothing to do for work in this position early on or should I maybe start to look at other employment opportunities? I really like working there, great company honestly, great group of people, it just feels very weird for someone who’s used to working his ass off to bsing my days with supers and other engineers just to kill my boredom . Just would rather not face any possibility of a layoff although I think I’m fine?