Crystal Report's 3 Way Formula is not working with a Two-Page Report

Question

I am using this 3 way formula below to get record/s from details section and display in group footer for each group in a report. It is working pretty well BUT NOT WITH A GROUP REPORT CONTAINING OR EXTENDING WITH more than 1 page.

Formula 1: In Group Header (Initialise)

Whileprintingrecords;
stringvar strtitle := "";

Formula 2: In details Section, (create a condition)

    Whileprintingrecords;

    stringvar strtitle;
    numbervar var;

    if ({@CurrentMonthNew}) = "CLOSED" and ({@PreviousMonthNew}) <> "CLOSED"
    THEN
    strtitle := strtitle   + ChrW(13) + cstr((var := var+1;),0) + ". "  +    {spMSR;1.name} + " ceased its operation on " + cstr({@LastDate})

   else if ({@CurrentMonthNew}) <> "CLOSED" and ({@PreviousMonthNew}) = "Not    yet operational"
   THEN
   strtitle := strtitle   + ChrW(13) + cstr((var := var+1;),0) + ". "  + {spMSR;1.name} + " started its operation on " + cstr({@FirstDate})

Formula 3: In Group Footer, display the final output

whileprintingrecords;
stringvar strtitle;

Why is not working with a two or more page report and how to solve this problem? Any help will be highly appreciated.

UPDATED:

I have tried to uncheck the "Repeart Group Report on Each Page" and it worked, but the group header was lost. How can we have both?

Answer 1

Modify formula in your group header:

Whileprintingrecords;
If Not InRepeatedGroupHeader Then stringvar strtitle := "";