receiver file name - generating with capital letter!!

Hi

I am trying to generate a file with the file name : schem_melton_trade_ratum.txt and i configured receiver file channel accordingly.

When I run my scenario end to end I got to see the file name is generated schem_melton_trade_Ratum.txt where 'r' gets changed as capital letter (R). Which is not expecting.

I work on PI 7.11 version. I do not know the system is behaving like this? Is there any bug or any one experienced this? What is the solution?

Thanks

swarna.