Unity interface not available from hub

I've got unity-hub installed on two laptops, both running LinuxMint 18.3 (64 bit), one can launch the unity interface but the other will not.

When I click on a project in the hub, it puts up the unity splash screen and shows "starting server", "resolving packages" etc but then the splash screen finishes, the progress boxes disappear then nothing. I can go back in to the hub and try again at which point it gives me the warning "your project was last saved with a different version of unity" and I can click continue but the same thing happens.

What am I missing?

 

Don't worry, sorted it by uninstalling UnityHub (the one from the repo) and installing it again but this time using a downloaded AppImage. I suspect the UnityHub in the repo was outdated. Not sure why it worked on one machine and not the other though...

Found similar threads: - https://forum.unity.com/threads/unity-hub-launches-editor-does-not.865189/ and https://forum.unity.com/threads/editor-still-crashing-hub-running-editor-not.871999/#post-5739877