Can't change the version

So when I go into the profiles and try to edit a profile. All options work except for the versions tab, which when I click-nothing comes up. This has been happening for a while, but I've been happy to play the current version, as there weren't any issues correlated to the new version, however, the server which I play on has not yet updated their version. This means that I am not able to join, as I'm on the newer version and I am not able to access the versions tab, ultimately resulting in me not being able to play what I want. This has been an issue for a while now, so I don't expect it to do with the newer versions, it's just that it's only bothered me now.