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.
Try selecting another workspace and the first one back. Many issues regarding corrupted workspaces will be fixed in 1.8.1, check https://mcreator.net/changelog for more info.