Error Toast with Cannot bind argument to parameter ‘InputObject’ because it is null. from Get-UDElement

PowerShell Universal
1 
Product: PowerShell Universal
Version: 2.8.3

On my Dashboard i had a Page to edit Serverproperties with a SelectBox for Server.

Sometimes, every 2 or 3 times, when i enter the Page, i got the Error Toast: Cannot bind argument to parameter ‘InputObject’ because it is null.

My Codepart was:
New-UDDynamic -Id ‘LDIServerbearbeitenServerdaten’ -Content {
$ServerBearbeitenselect = Get-UDElement -Id “LDIServerbearbeitenServerSelect”
if ($ServerBearbeitenselect.value -ne “”) {…

After change this to:
New-UDDynamic -Id ‘LDIServerbearbeitenServerdaten’ -Content {
New-UDDynamic -Id ‘LDIServerbearbeitenServerdaten2’ -Content {
$ServerBearbeitenselect = Get-UDElement -Id “LDIServerbearbeitenServerSelect”
}
if ($ServerBearbeitenselect.value -ne “”) {…

i did not see any Error Toast and the Page is loaded faster…

Ok i am happy about that … but anyone know way?