Why this AFL is showing only Sell signal in SCAN and Nothing on BackTesting? Please Help?

[thonkey]

pb=Optimize("period",2,2,50,1);
ps=Optimize("SwingPeriod",4,2,50,1);

A=HHV(High,pb);
B=LLV(Low,pb);

Buy=A > Ref( A,-ps)
AND B > Ref( B,-ps)
AND Close>A;

Sell=B < Ref( B,-ps);

[fxshrat]

It does not show results because of this one

Close>A

Close can not be larger than HHV of current bar. HHV includes current bar.

You have to change to e.g.

Close>Ref(A, -1)

[thonkey]

Thankyou