I am sorry for inconveniences. Are you using a portable version or desktop installer version? If you are using the portable version, please check the EmEditor folder is writable including the AppData subfolder within the EmEditor folder.
In order for me to reproduce the issue, please do the following steps if you don’t mind.
Select the Tools menu -> Import and Export, and then select Export all settings into a registry file (or INI files), and save exported files and folders.
Then select the Tools menu -> All Commands -> Tools -> Reset All Settings, this should prompt you to restart EmEditor.
Please check if the issue still persists. If the issue has been resolved, then please zip exported files and folders (including the AppData subfolder within the exported folder), and email the zip file to me (tech @ emurasoft.com).
You can also send me screenshots to explain the issue.