diff --git a/TBF/Rig/Sequences/SequenceBase.cs b/TBF/Rig/Sequences/SequenceBase.cs
index 1ccf6b77c..3fc26a39c 100644
--- a/TBF/Rig/Sequences/SequenceBase.cs
+++ b/TBF/Rig/Sequences/SequenceBase.cs
@@ -469,7 +469,7 @@ namespace TBF.Rig.Sequences
                     }
 
 					/// Get new regulation valve positions,
-					float[] allRegvPositions = Utils.GetRegulValvesPositions(step.RegulValvesPct);
+                    float[] allRegvPositions = Utils.GetRegulValvesPositions(step.RegulValvesPct, RegulValves.Count);
 
                     /// Prepare necessary SetRegValvePositionOp operations for RV-s with changed positions
 					IList<IOperation> rvPosOps = new List<IOperation>();
diff --git a/TBF/Utils.cs b/TBF/Utils.cs
index f5d8f4b13..bc08f64be 100644
--- a/TBF/Utils.cs
+++ b/TBF/Utils.cs
@@ -193,9 +193,8 @@ namespace TBF
 		/// </summary>
 		/// <param name="entity">TransitionStep entity</param>
 		/// <returns>float[] of regulation valve positions from 0 to 100.0f</returns>
-        public static float[] GetRegulValvesPositions(string regulValvesPct)
+        public static float[] GetRegulValvesPositions(string regulValvesPct, int regvCount)
 		{
-			int regvCount = Rig.Sequences.SequenceBase.RegulValves.Count;
 			float[] result = new float[regvCount];
 
 			string[] rvPosStr = (regulValvesPct != null) ? regulValvesPct.Split(new char[] { ';' }) : new string[0];