Nested Ichimoku indicator broken in 3.7 beta

Running cTrader 3.7 public beta, I'm unable to use the built-in Ichimoku indicator in another bot or custom indicator.  Initialization fails with error:
 
Crashed in Initialize with ArgumentException: Incorrect parameters count. Parameter name: parameterValues

Both versions in the API to create the Ichi indicator fails:

ichi = Indicators.IchimokuKinkoHyo( 9, 21, 52 );
ichi = Indicators.IchimokuKinkoHyo( Bars, 9, 21, 52 );

Here is a minimal sample that fails.  The same code works fine in cTrader 3.6

using System;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;
using cAlgo.Indicators;

namespace cAlgo
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class TestMA : Indicator
    {
  
        [Output("Baseline", LineColor = "Aqua")]
        public IndicatorDataSeries Result { get; set; }

        // Indicators
        private IchimokuKinkoHyo ichi;
        private IndicatorDataSeries indiSeries;

        protected override void Initialize()
        {
            ichi = Indicators.IchimokuKinkoHyo( 9, 21, 52 );
            indiSeries = ichi.KijunSen;
        }

        public override void Calculate(int index)
        {
            Result[ index ] = indiSeries != null ? indiSeries[ index ] : Double.NaN;
        }
    }
}