Hi @fletchy8888,
I don’t know which version that u r using. Currently you have latest version CE 2018.3.0. Please try it by the below link .And also try to open the UiPath studio Run as administrator.
If nothing not helps you.The final(unavoidable) solution is that to do the uninstall the Studio and reinstall it. Definitely It will work.
Regards
Balamurugan.S