Xojo is full of bugs. https://ifnotnil.com was set up after Xojo banned users for complaining...
My advice to developers that are interested in Xojo, or looking for something different in terms of languages / development platforms, is to give Xojo a try. You can build and run apps in debug mode for as long as you'd like, all at no charge. It's only when you want to compile apps so that you can run them as executables and/or for distribution that you'll need to purchase a license.