QuickCreate for Opportunity display empty drawer

We have upgraded SugarCRM from v 7.6 to 8.0.2, and now if I click Create Opportunity from QuickCreate menu - it displays empty drawer. It works fine for other modules like Tasks, Cases.

There are no errors in sugarlog, phplog and console. 

I have removed all layouts and view customisations. There is no create.js or create-actions.js controller.

Also there is no call to the backend to bring module metadata, like it happens when you click to create Case from QuickCreate menu.

Does anybody have similar issue? Please advice what else I can check.