[0.8.2] Problem with datefield

Hi

I have a page which opens another page (grid) in tabs
This is working great in production

It's build around this example
https://examples1.ext.net/#/GridPane...SqlDataSource/

Next step is to have a form/editor to open for selected row based upon this sample
https://examples1.ext.net/#/GridPane...etails_Window/

This gives me the headache as the datepicker is not opening correctly
Looks like the datepicker form is opening behind the form and not on top of it

I am using codebehind for building the fields on the fly, maybe this is the cause of my trouble?

Adding datefield in page_init on a single webpage is not an issue, this is working ok

[EDIT] I have tried to use the form from this sample (only markup)
https://examples1.ext.net/#/Form/Dat...From-To_Range/

But the datepicker will not show ...

tia