Mine will too, at room temp, but not while in the freezer. At least, anyway, not in the time I typically have them in the freezer.
Here's a two or three days after roasting light roast Rwanda. This pack has been in the freezer for 3-4 weeks. You can see it's "tight".
When I'm ready to use this pack I will let it warm to room temp. Overnight the bag will already have started to loosen up/puff up.
Personally, I find hard beans like Rwanda at light roast can take a long time to fully settle down/mature after roasting. To the point I sometimes hold off on freezing the bulk until I feel it's approaching peak tastiness, then freeze it then so when thawed out for use it's coming on peak.