Problem/Question with DropDown

My index.html has:
script src="_content/Radzen.Blazor/Radzen.Blazor.js"
The nuget version of Radzen I am using is: 2.15.7

My dropdown definition is:
<RadzenDropDown AllowFiltering="true" TValue="string" Placeholder="Select practice" Data="@lstPractices" TextProperty="facility" ValueProperty="practiceid" Change="@(args => Change(args, "practice"))" Style="width:500px;">

lstPractice is List
class KMPracticeInfo
public String facility { get; set; }
public String specialty { get; set; }
public long practiceid { get; set; }
with two constructors

Upon loading I am getting bunch of unhandled errors but drop down is populated with the facility names. Interestingly, drop down with simple list of strings works fine.
Any help / advise will be greatly appreciated. Thanks!

crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]
Unhandled exception rendering component: Could not find 'preventArrows' in 'window.Radzen'.
Error: Could not find 'preventArrows' in 'window.Radzen'.
at _framework/blazor.webassembly.js:1:9130
at Array.forEach ()
Microsoft.JSInterop.JSException: Could not find 'preventArrows' in 'window.Radzen'.
Error: Could not find 'preventArrows' in 'window.Radzen'.

Hi @qplace,

Try to clear your browser cache.

Thank you. After I posted the question I tried to change the default browser from Chrome to FF to check if it is a cache issue and it was.