I discovered this while editing a gui, if the user zooms in on the gui being edited, switch to a different tab, and then switch back to the gui editor, the gui preview will then be overlapping the editor controls.
MCreator issue tracker has been migrated to GitHub.
Existing tickets have been migrated to GitHub. Please open new tickets on the GitHub tracker instead. If you do not have a GitHub account, all feature requests and bug reports from forums are still considered and checked by the maintainers.