footers for sections placed in wrong location

Hello,

I have a problem with report, just created a generated design and added two section groups from which each of section group has 3 sections (header,body,footer). 

All the data is working perfectly but when I am running the report, section group footer is placing in wrong location, I just want every footer inside it's related section group.

This is my report's design:

And this is the output for this:

Maybe there I have more than 10 sectionGroups, I want the same design for all.

Thanks in advance