Select all checkbox functionality is not working as expected for Optimized and Personalized Table

Followed this article but I could see the below issues.

https://collaborate.pega.com/discussion/how-add-select-all-functionality-optimized-table

1.We can click on header check box in any page and switch between pages header check box is unselecting.

2. We can unselect any of the row level check box header check box is not unselecting.

3.Select all checkbox is selecting only the records present in current page.