We had that kind of feeder for a while. Squirrel managed to get inside and was trapped there ;-)
Must have been a small squirrel. We have the small red squirrel who doesn’t bother the feeder and the larger fox squirrel which we have in abundance. They are like feral hogs. They clean up the seeds the other birds drop and so do the turkeys and occasional deer. Feeder is only about 8 feet from the house.