Every time I try to run a test class, method or suite Welkins crashes. I've tried creating the projects in different directories and I've tried different projects. They all seem to crash the IDE. I can do a code coverage refresh and it will show recently completed tests and the coverage of any given class. I can also see the test created in the Salesforce instance that I'm trying to run the test. It shows up in the developer console and will run to completion.
Version: 1.18.5.4
Link to video of issue: https://goo.gl/3HSK3v