Studio not able to restore default layout?

Hi All,

I hope you can help on this one.. I have an issue on Opportunity module. I will explain the issue as I am not sure why this odd behaviour only occurs on Opportunity.  (Sugar version 11.0.2) - ON site no customisations 

Step's - this is mine process that I take on Opportunities 

  1.  Select Record View
  2. select one of the Role 
  3. add new row and add new field 
  4. now save and deploy 

After this process , I do want to reset and restore to default but it does not reset, is there anything that is missing on this process ?

Steps's

  1. click on restore default layout
  2. save & deploy

after this the start still showing.

This is only happens on Opportunities.