Hello there, @pup.

I have some information to share about getting a blank screen upon editing a vendor or contractor's profile in QuickBooks Online.

We currently received reports wherein customers are seeing a blank screen when editing vendors' information. Our engineers are already investigating the main reason for this unusual behavior, so they can apply a permanent resolution. 

In this case, I'd suggest reaching out to our Customer Care Team so you'll be added to the list of the affected users. This way you'll be able to receive email notifications about the recent updates about this issue. 

For now, to make your work done, you can refresh the contractors page by pressing F5 on your keyboard or click on your browser's refresh/reload button. This will re-display the list of contractors'.

Thank you for your patience while this has been worked on.

My doors are always open to help if there's anything else you need concerning QuickBooks. Just leave a reply below and we'll take it from there. Have a fantastic weekend!