Setting page content dynamically

Product: PowerShell Universal
Version: 5.6.1

I have some elements in UDPage

I created a switch (udiconbutton in app bar)
When clicked some of the elements are changed in the app

I define it in very more/less this way:

$session:csv_element_content = {
CSV ELEMENTS...
}
$session:group_element_content = {
GROUP ELEMENTS...
}
New-UDElement -Id ‘csv_element’ -Tag ‘div’ -Content $session:csv_element_content
--------------------------------------------------------
udiconbutton is pressed ->
if ($page:group_open) {
Set-UDElement -Id 'csv_element' -Content $session:group_element_content
}
else {
Set-UDElement -Id 'csv_element' -Content $session:csv_element_content

}

And surprisingly its working (most of the times)
But sometimes after few mode switch (or even after page reload), some of the elements attributes (styles mostly i guess) are broken:
Proper look:



Broken look:
y


Styles and arrays are defined as page scope variables.
I cannot track it why its not applied sometimes.
There is no errors in the logs.

Its not consistent - but after few tries it fill eventually fail.
So how to debug it, fix it, or maybe there is better way to achieve this kind of content witch mechanism ?