For some reason, you may need to reinitialize Lychee Slicer to have the application in the same state the first time you installed it on your computer.
When uninstalling the application, an important folder is left on purpose on your computer that stores preferences and data about the application. Then if you deinstall and reinstall the application, these data remain, and when relaunching the application, you will still have the same preferences and data available. It's useful mainly when upgrading the application to a more recent version. But if something goes wrong, it can be problematic.
Please find below the instruction to remove these data and clear all of the preferences. We advise you to rename the temporary folder and not deleting it. After restarting the slicer, you will have to log in with your account credentials, and the application will download from the cloud all your data.
Note: your support preset parameters (Light/Medium/Heavy) will be lost. If you can, export them before reinitializing Lychee Slicer.