No record showing in Grouped grid when change 'data' property

[baminmru]

I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[X ] Bug report  
[X ] Feature request
[ ] Documentation issue or request
[ ] Support request

Current behavior

I use JWT autentification in my application. So I can't use http-url property. I fill data array from server with different parameters (for example each user has own scoupe of data records). I use data property to set information to grid with 'groupby' property=true. Grid not show rows at all.

If 'groupby' property = false grid behavior is OK.

Expected behavior

Grid show actual grouped rows when data property set to new collection of data rows.

Minimal reproduction of the problem with instructions

For bug reports please provide the STEPS TO REPRODUCE and if possible a MINIMAL DEMO of the problem via https://plnkr.co or similar (you can use Our Amexio Plunker as a starting point: http://plnkr.co/edit/M9AeGH?p=info)

What is the motivation / use case for changing the behavior?

Environment

Angular version: 6.2.4


Browser:
- [ ] Chrome (desktop) version XX
- [ ] Chrome (Android) version XX
- [ ] Chrome (iOS) version XX
- [ X] Firefox version 58
- [ ] Safari (desktop) version XX
- [ ] Safari (iOS) version XX
- [ ] IE version XX
- [ ] Edge version XX

For Tooling issues:
- Node version: 10.11.0  
- Platform:  Windows 

Others:

[rashmithakkar]

Please take the amexio-ng-extensions(v5.11.1) update.

Thanks

[baminmru]

Now grid show records, but group by feature do not work. And also rowSelect event not raised.