My username changed from Lenwe-Saralonde to ForgeUser140978 and sometimes WoW_user140978 for no reason on curseforge. However my actual username Lenwe-Saralonde normally normally shows up on the curse.com website. Is there a way to fix this ?
The new sites do not allow dashes in names, so when the users were imported from the old sites a generic rename was forced. You'll either have to pick a new name or replace the dash with an underscore. Create a ticket at https://support.curse.com to make sure the rename request is seen by someone who can help you.