Issues using Dynamic Partials

[joamla96]

Hello.
I'm trying to implement a "Dynamic Partial", how-ever I encounter this exception:¨

   at System.Reflection.RuntimeMethodInfo.CreateDelegateInternal(Type delegateType, Object firstArgument, DelegateBindingFlags bindingFlags)
   at HandlebarsDotNet.Compiler.SubExpressionVisitor.GetHelperDelegateFromMethodCallExpression(MethodCallExpression helperCall)
   at HandlebarsDotNet.Compiler.SubExpressionVisitor.VisitSubExpression(SubExpressionExpression subex)
   at System.Linq.Expressions.ExpressionVisitor.VisitUnary(UnaryExpression node)
   at System.Linq.Expressions.UnaryExpression.Accept(ExpressionVisitor visitor)
   at System.Dynamic.Utils.ExpressionVisitorUtils.VisitArguments(ExpressionVisitor visitor, IArgumentProvider nodes)
   at System.Linq.Expressions.ExpressionVisitor.VisitMethodCall(MethodCallExpression node)
   at System.Linq.Expressions.MethodCallExpression.Accept(ExpressionVisitor visitor)
   at System.Dynamic.Utils.ExpressionVisitorUtils.VisitBlockExpressions(ExpressionVisitor visitor, BlockExpression block)
   at System.Linq.Expressions.ExpressionVisitor.VisitBlock(BlockExpression node)
   at System.Linq.Expressions.BlockExpression.Accept(ExpressionVisitor visitor)
   at HandlebarsDotNet.Compiler.FunctionBuilder.Compile(IEnumerable`1 expressions, Expression parentContext, String templatePath)
   --- End of inner exception stack trace ---
   at HandlebarsDotNet.Compiler.FunctionBuilder.Compile(IEnumerable`1 expressions, Expression parentContext, String templatePath)
   at HandlebarsDotNet.Compiler.DeferredSectionVisitor.GetDeferredSectionTemplates(DeferredSectionExpression dsex)
   at HandlebarsDotNet.Compiler.DeferredSectionVisitor.VisitDeferredSectionExpression(DeferredSectionExpression dsex)
   at System.Dynamic.Utils.ExpressionVisitorUtils.VisitBlockExpressions(ExpressionVisitor visitor, BlockExpression block)
   at System.Linq.Expressions.ExpressionVisitor.VisitBlock(BlockExpression node)
   at System.Linq.Expressions.BlockExpression.Accept(ExpressionVisitor visitor)
   at HandlebarsDotNet.Compiler.FunctionBuilder.Compile(IEnumerable`1 expressions, Expression parentContext, String templatePath)
   --- End of inner exception stack trace ---
   at HandlebarsDotNet.Compiler.FunctionBuilder.Compile(IEnumerable`1 expressions, Expression parentContext, String templatePath)
   at HandlebarsDotNet.Compiler.FunctionBuilder.Compile(IEnumerable`1 expressions, String templatePath)
   --- End of inner exception stack trace ---
   at HandlebarsDotNet.Compiler.FunctionBuilder.Compile(IEnumerable`1 expressions, String templatePath)
   at HandlebarsDotNet.Handlebars.HandlebarsEnvironment.Compile(String template)
   at FileGeneratorService.Service.GeneratePDF(VM_Quote quote) in D:\Users\jola\Source\Repos\Utility Portal\FileGeneratorService\Service.cs:line 63
   at WebAPI.Controllers.QuotesController.GetExport(Int32 id, String type) in D:\Users\jola\Source\Repos\Utility Portal\WebAPI\Controllers\QuotesController.cs:line 291
   at Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
   at System.Threading.Tasks.ValueTask`1.get_Result()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeActionMethodAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeNextActionFilterAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()
   at Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)
   at WebAPI.MiddlewareDeveloperException.Invoke(HttpContext context) in D:\Users\jola\Source\Repos\Utility Portal\WebAPI\MiddlewareDeveloperException.cs:line 23

I've registered the following templates and verified they work independently.

Handlebars.RegisterTemplate("ProductGroups", await productGroupTask);
Handlebars.RegisterTemplate("ProductGroupsTypeA", await productGroupIaasTask);

and a helper that looks like this:
(obviously, this part is not done yet, but should still work)

Handlebars.RegisterHelper("WhichProductGroup", (output, context, arguments) => {
	output.Write("ProductGroups");
});

and finally, this is how I'm trying to use it:

{{#productGroups}}
{{> (WhichProductGroup)}}
{{/productGroups}}

Any chance you can see what i missed?
I was using information from issue #96 as a reference.