PAK and MESSAGE statement

Hello Gurus,

We are in 7.4 SP12.

I face a weird behaviour with PAK and MESSAGE statement.

In my FOX I have a concatenation of 2 values (string) with a space separates between.

Something like that:

AAA = CONCAT( BBB, ' ').

CCC= CONCAT( AAA, DDD).

MESSAGE E000(ZZZ) WITH CCC.

Let's say BBB is "Country" and DDD is "USA'.

The expected result is Country USA (with the space between Country and USA).

If I set PAK on the system ignores the space (the result is CountryUSA).

But if I set PAK off everything works fine (the result is Country USA).

Thank you,