Whenever we select a vendor for the purchase order, there'd be an error like this and all the fields aren't auto populated:
When i debugged it, the PO's behavior was acting normally and then when i got out of the debugger it auto filled out the fields.
And the current user to which i logged on can create PO's fine now. But if it's another user who created a PO, they'll experience the same error over again.
*This post is locked for comments