[Angelinas]

thats widget...right
Have you set widget container number ?

Code:

    <onload>SetProperty(SkinHelper.WidgetContainer,###)</onload>

Try to avoid $INFO[ListItem.Propery(DBTYPE)] for episode...not working good.
use fixed

Code:

<value condition="String.IsEqual(Container(510).ListItem.Property(Type),episode)">plugin://script.skin.helper.service/?action=getcast&amp;tvshow=$ESCINFO[Container(510).ListItem.TVShowTitle]&amp;downloadthumbs=true&amp;castaction=extendedinfo</value>

You can use condition same for tvshows and episodes in widgets

Code:

condition="!String.IsEmpty(Container(510).ListItem.TVShowTitle)"

@Marcel I don't have info or Art if play Episode from library(Kodi version Leia)
Can you check ...or it's normal to have only Kodi info and art
ListItem are populated and working.