MT5 "Forward testing tab" disappear after i do another optimization

 
hi 

Situation : 
- I done a 10k combination optimization with forward test , i see there is "Foward Results" Tab at bottom of strategy tester

However, if i do another 5k optimization backtest + Forward test , and after it finish, when i try to visit the previous 10k combination, the " Forward results" tab will be gone and disappear

i even tried to load from optimization cache , but still unable to retrieve "forward results", is it a bug of software? What i can do to save it ? 
Files:
abc.png  18 kb
 

I would love to know the answer to this too.

 
Forward results are not saved anywhere.
 
fxsaber #:
Forward results are not saved anywhere.

The data saves, as if you export an optimization you get two data files, one of back test and the other forward test. However when you open it up it doesn't show it like it does when you first finish the test.

 
scottbusby #:

The data saves, as if you export an optimization you get two data files, one of back test and the other forward test. However when you open it up it doesn't show it like it does when you first finish the test.

opt-file format.