Hello,
We have tried updating/editing a vendor after hearing from you but all it seems okay so far. The vendor was updated successfully. I hope you have used the ‘edit’ button to update a vendor. Reference screenshot: https://prnt.sc/pd9ntg
However, if this edit doesn’t work for you, then you might have technical difficulties on your site. In such cases, please contact our support center. Our technical team will have a look at this.-> https://wperp.com/contact/
Thanks