Regarding the UI graphics, that does look weird. Haven’t seen it before; could you share your graphics card + system specs?
Regarding the grasshopper accounts: I think this has to do with a botched update. If you have previously installed the speckle rhino plugin via the .rhi we provided, and you opted “for all users”, then the new installer can’t uninstall the old plugin, so it gets confused as f**k.
To fix two, you’ll need to uninstall it beforehand by manually deleting the previous installation from its folder. You can find this like this:
You’ll just need to click on the small “details” link, and then a popup will appear that shows the folder location. Wipe that, reinstall the plugin and you should be fine. If the problem persists, we’re here! (albeit slower to react on sundays )