I am using launcher version v.3.3.13-2.1.3. My issues seem similar to MCL-12083, but since I am on a later version of the launcher than the resolved version (2.1.9322-2.1.9324) it seems like a new issue.

1. In the "installations" tab, when I create a new installation, if I select any version from the version menu, the selected version is discarded and instead it populates "latest release".
2. In the "installations" tab, if I select the "edit" drop down menu from the ellipses on an installation, it does not open the profile to edit. 
3. In the "installations" tab, if I select the "duplicate" drop down menu from the ellipses on an installation, it does not duplicate the selected profile.
4. In the "Play" tab, if I try to switch installations, my selection is discarded and the installation originally at the top of the menu stays populated.

WORK AROUND: I can change the version by directly editing my ~/.minecraft/launcher_profiles.json to the desired version, name, etc. I can edit the "lastUsed" key to put my desired installation at the top of the list in the "play" tab by putting a newer timestamp value than the current top installation.

Aside: lastUsed key does not seem to actually update based on usage. It stays at unix epoch time unless edited as specified in the workaround.