Filtering a dropdown throws an error

Hi. This is something I've done a million times, but for some reason in my new project it's not working. I have a dropdown, and every time I try filtering it, it throws an error. Any ideas? I tried filtering a number and a string, and I tried saving the value binding to a string and an int. Thank you

DropDown:
<RadzenDropDown FilterCaseSensitivity="FilterCaseSensitivity.CaseInsensitive" FilterOperator="StringFilterOperator.Contains"
TValue="int" AllowFiltering="true" TextProperty="UtilityName" ValueProperty="UtilityKey"
@bind-Value=PageModel.RequestInput.UtilityKey Multiple="false" Placeholder="Selected LDC" Change="FilterZones"
Data=@AppState.CurrentUser.StartUpObjects.UtilityList
Class="form-control" />

Error:
blazor.server.js:1 [2024-04-08T15:20:30.218Z] Error: System.IO.FileNotFoundException: Could not load file or assembly 'nunit.framework, Version=2.1.4.0, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77'. The system cannot find the file specified.
File name: 'nunit.framework, Version=2.1.4.0, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77'
at System.ModuleHandle.ResolveType(QCallModule module, Int32 typeToken, IntPtr* typeInstArgs, Int32 typeInstCount, IntPtr* methodInstArgs, Int32 methodInstCount, ObjectHandleOnStack type)
at System.ModuleHandle.ResolveTypeHandle(Int32 typeToken, RuntimeTypeHandle typeInstantiationContext, RuntimeTypeHandle methodInstantiationContext)
at System.Reflection.RuntimeModule.ResolveType(Int32 metadataToken, Type genericTypeArguments, Type genericMethodArguments)
at System.Reflection.CustomAttribute.FilterCustomAttributeRecord(MetadataToken caCtorToken, MetadataImport& scope, RuntimeModule decoratedModule, MetadataToken decoratedToken, RuntimeType attributeFilterType, Boolean mustBeInheritable, ListBuilder1& derivedAttributes, RuntimeType& attributeType, IRuntimeMethodInfo& ctorWithParameters, Boolean& isVarArg) at System.Reflection.CustomAttribute.IsCustomAttributeDefined(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, RuntimeType attributeFilterType, Int32 attributeCtorToken, Boolean mustBeInheritable) at System.Reflection.CustomAttribute.IsDefined(RuntimeType type, RuntimeType caType, Boolean inherit) at System.Linq.Dynamic.Core.CustomTypeProviders.AbstractDynamicLinqCustomTypeProvider.<>c.<GetAssemblyTypesWithDynamicLinqTypeAttribute>b__3_0(Type t) at System.Linq.Enumerable.WhereArrayIterator1.MoveNext()
at System.Linq.Enumerable.DistinctIterator1.MoveNext() at System.Linq.Dynamic.Core.CustomTypeProviders.AbstractDynamicLinqCustomTypeProvider.GetAssemblyTypesWithDynamicLinqTypeAttribute(IEnumerable1 assemblies)+MoveNext()
at System.Collections.Generic.HashSet1.UnionWith(IEnumerable1 other)
at System.Collections.Generic.HashSet1..ctor(IEnumerable1 collection, IEqualityComparer1 comparer) at System.Linq.Enumerable.DistinctIterator1.ToArray()
at System.Linq.Dynamic.Core.CustomTypeProviders.AbstractDynamicLinqCustomTypeProvider.FindTypesMarkedWithDynamicLinqTypeAttribute(IEnumerable1 assemblies) at System.Linq.Dynamic.Core.CustomTypeProviders.DefaultDynamicLinqCustomTypeProvider.GetCustomTypesInternal() at System.Linq.Dynamic.Core.CustomTypeProviders.DefaultDynamicLinqCustomTypeProvider.GetCustomTypes() at System.Linq.Dynamic.Core.Parser.KeywordsHelper..ctor(ParsingConfig config) at System.Linq.Dynamic.Core.Parser.ExpressionParser..ctor(ParameterExpression[] parameters, String expression, Object[] values, ParsingConfig parsingConfig) at System.Linq.Dynamic.Core.DynamicExpressionParser.ParseLambda(Type delegateType, ParsingConfig parsingConfig, Boolean createParameterCtor, ParameterExpression[] parameters, Type resultType, String expression, Object[] values) at System.Linq.Dynamic.Core.DynamicExpressionParser.ParseLambda(ParsingConfig parsingConfig, Boolean createParameterCtor, ParameterExpression[] parameters, Type resultType, String expression, Object[] values) at System.Linq.Dynamic.Core.DynamicExpressionParser.ParseLambda(ParsingConfig parsingConfig, Boolean createParameterCtor, Type itType, Type resultType, String expression, Object[] values) at System.Linq.Dynamic.Core.DynamicQueryableExtensions.Where(IQueryable source, ParsingConfig config, String predicate, Object[] args) at Radzen.DropDownBase1.get_View()
at Radzen.Blazor.RadzenDropDown`1.BuildRenderTree(RenderTreeBuilder __builder)
at Microsoft.AspNetCore.Components.Rendering.ComponentState.RenderIntoBatch(RenderBatchBuilder batchBuilder, RenderFragment renderFragment, Exception& renderFragmentException)
log @ blazor.server.js:1

Check if you have such property.

Yes. In fact, everything works fine (selecting, etc) except when I try filtering:
public class UtilityEntity
{
public int UtilityKey { get; set; }
public string UtilityName { get; set; }
public int SystemID { get; set; }
public string ISO { get; set; }
}

Not sure in this case what’s causing this exception.

I upgraded the version from 4.16.4 to 4.29.7 and it just started working. Thank you