EWS - Error when loading the XML schedule

Hi everyone,

I'm facing an issue and need some help;

First things first - the versions:

- Financial Consolidation 10.0 SP14

- MS Excel 2010

- IE 8. (First I was on IE 10, and downgraded to see if that was the issue - the answer seems to be NO!)

I have checked configurations via EWSAudit and it seemed OK for both IE versions.

Then I connect to FC vie web interface and try to open a schedule inside a package. (By the way I have done the authorization and preferences steps.)

With both IE 10 and IE 8 it gives the following error:

Then when I click OK, excel opens - including FC-EWS ribbon but as an empty sheet:

And then as I click anywhere on the white sheet excel stops working:

I have followed every configuration step that I could find. Any ideas?