Open Queen Cell Found

I found what I'm pretty sure is a queen cell on the bottom of a comb today. There was no egg or larva that I could see and the top looked chewed open. It looked like a swarm cell but there was only one (I think) and I only installed this hive as a package in early May. Since installation, I've never seen the queen on any of the bars (haven't really looked) but the colony has always seemed like it had a queen, and there was always plenty of brood, so I wasn't ever worried. Do you think the colony was trying to replace the queen or did they somehow just randomly make a queen cell? I'm a first year beekeeper so I'm not really sure about any of this but any advice would be appreciated. submitted by /u/n0ub_nurd |