Few suggestions here:
1. Projection_1 giving date to both Rank nodes . Use 2 separate projection , model would be easier to read and less complex. You can easily copy project 1 and name it something else.
2. Calculate total number of failure at desired level before joining them at Join_2 node.
If you are using dummy key figure ( =1 ) , you cannot make -1 for every row. Essentially that would make 1-1 = 0 and sum will be zero. You have to sum it first for all failures and then subtract 1 from the total .
You can also take data from Rank_1 node with a filter of Rank Not Equal to 1 or Greater than 1 . This way, you will always omit the first failure . So, you can derive total number of repeat failure.
Also explore "Counter" in Calculation View .
Regards
Anindya