Katalon Studio 6.1.0 Crashing when editing .groovy file

Katalon Studio
Version: 6.1.0
Build: 1
Appium: 1.8.1

This happened three times.
Whenever I open and edit a “.groovy” file under the “include” folder. When I try to “glue” my feature files to the .groovy file. Katalon Studio will crash and close the app. I would lose all my edits and restart from scratch. is this a known bug?

This has been left inactive for years. I will close this.