OMG.. I can't believe I missed it, I see what you mean... the Account (SNC account 211...) was set to "Your Company" and I'm using another company I created has my default...
I though the system would create the Accounts for both companies, but I guess not...
EDIT: Actually in "Accounting" -> Accounts, I see 211... in the correct company, but in the invoice (if i clicked the account) it was in "your company"... how is this possible?...
After I edited the invoice and manually selecting the account, then save.... I click it again and now it shows in the correct company... This is VERY VERY strange...!
And its still not validating.... takes ages saying "don't go away.... blah blah..." (kind of annoying, is there anyway to stop this and just show the error in the window?)
The error in the log is still the same :S