diff --git a/matRad/doseCalc/+DoseEngines/@matRad_DoseEngineBase/matRad_DoseEngineBase.m b/matRad/doseCalc/+DoseEngines/@matRad_DoseEngineBase/matRad_DoseEngineBase.m
index c1f9cda17..baf9b3c9f 100644
--- a/matRad/doseCalc/+DoseEngines/@matRad_DoseEngineBase/matRad_DoseEngineBase.m
+++ b/matRad/doseCalc/+DoseEngines/@matRad_DoseEngineBase/matRad_DoseEngineBase.m
@@ -322,13 +322,16 @@ function setDefaults(this)
         end
 
     
-        function progressUpdate(this,pos,total)
+        function progressUpdate(this,pos,total,linereset)
             % This function updates the progress of the dose calculation process.
             % It can handle both absolute and relative progress updates.
             % If only one argument is provided, it assumes a relative progress
             % update from 0 to 1000. If two arguments are provided, it uses the
             % actual values to calculate the progress percentage.
-            
+            if nargin < 4
+                linereset = false;
+            end
+
             % Default total value handling
             if nargin < 3
                 pos = pos*1000; % Assume pos is a relative progress if total is not provided
@@ -348,7 +351,7 @@ function progressUpdate(this,pos,total)
             % Log progress if the log level is high enough
             % This allows for detailed tracking of the calculation progress in logs
             if matRad_cfg.logLevel > 2
-                matRad_progress(pos,total); % Log the progress
+                matRad_progress(pos,total,linereset); % Log the progress
             end
             
             % Update the waitbar with the current progress if it exists
diff --git a/matRad/doseCalc/+DoseEngines/matRad_PencilBeamEngineAbstract.m b/matRad/doseCalc/+DoseEngines/matRad_PencilBeamEngineAbstract.m
index c835449cd..b81d1cd77 100644
--- a/matRad/doseCalc/+DoseEngines/matRad_PencilBeamEngineAbstract.m
+++ b/matRad/doseCalc/+DoseEngines/matRad_PencilBeamEngineAbstract.m
@@ -114,6 +114,7 @@ function setDefaults(this)
 
                     %Initialize Beam Geometry
                     currBeam = this.initBeam(dij,ct,cst,scenStf,i);
+                    progressLineReset = true;
 
                     %Keep tabs on bixels computed in this beam
                     bixelBeamCounter = 0;
@@ -151,7 +152,8 @@ function setDefaults(this)
                         % Progress Update & Bookkeeping
                         bixelCounter = bixelCounter + currRay.numOfBixels;
                         bixelBeamCounter = bixelBeamCounter + currRay.numOfBixels;
-                        this.progressUpdate(bixelCounter,dij.totalNumOfBixels);
+                        this.progressUpdate(bixelCounter,dij.totalNumOfBixels,progressLineReset);
+                        progressLineReset = false;
                     end
                 end
             end
diff --git a/matRad/steering/matRad_StfGeneratorExternalRayBixelAbstract.m b/matRad/steering/matRad_StfGeneratorExternalRayBixelAbstract.m
index a47dd0203..8cf5766e0 100644
--- a/matRad/steering/matRad_StfGeneratorExternalRayBixelAbstract.m
+++ b/matRad/steering/matRad_StfGeneratorExternalRayBixelAbstract.m
@@ -54,7 +54,7 @@ function setDefaults(this)
             nBeams = numel(this.gantryAngles);
             if nBeams ~= numel(this.couchAngles)
                 matRad_cfg = MatRad_Config.instance();
-                matRad_cfg.dispWarning('For some reason, we have a different number of beam and couch angles!');
+                matRad_cfg.dispError('The number of gantry angles and couch angles must be equal.');
             end
          end
 
@@ -67,9 +67,13 @@ function setDefaults(this)
             if ~this.lockAngleUpdate
                 this.lockAngleUpdate = true;
                 if numel(this.gantryAngles) > numel(this.couchAngles)
+                    matRad_cfg = MatRad_Config.instance();
+                    matRad_cfg.dispError('There are more gantry angles than couch angles. They have to have the same size.');
                     %Append Couch angles with zeros
                     this.couchAngles = [this.couchAngles zeros(1,numel(this.gantryAngles)-numel(this.couchAngles))];                    
                 elseif numel(this.couchAngles) > numel(this.gantryAngles)
+                    matRad_cfg = MatRad_Config.instance();
+                    matRad_cfg.dispError('There are more couch angles than gantry angles. They have to have the same size.');
                     %Try to identify the removed beam angles
                     [removedAngles,ix] = setdiff(oldAngles,this.gantryAngles);
                     
@@ -381,11 +385,6 @@ function initialize(this)
                     pause(1);
                 end
                 
-
-                % Show progress
-                if matRad_cfg.logLevel > 2
-                    matRad_progress(i,length(this.gantryAngles));
-                end
             end
         end
 
diff --git a/matRad/util/matRad_progress.m b/matRad/util/matRad_progress.m
index 6d16e5772..241511e97 100644
--- a/matRad/util/matRad_progress.m
+++ b/matRad/util/matRad_progress.m
@@ -1,5 +1,4 @@
-function matRad_progress(currentIndex, totalNumberOfEvaluations)
-% matRad progress bar
+function matRad_progress(currentIndex, totalNumberOfEvaluations, linereset)
 % 
 % call:
 %   matRad_progress(currentIndex, totalNumberOfEvaluations)
@@ -7,6 +6,7 @@ function matRad_progress(currentIndex, totalNumberOfEvaluations)
 % input:
 %   currentIndex:               current iteration index
 %   totalNumberOfEvaluations:   maximum iteration index
+%   linereset:                  (optional) reset output to new line
 %
 % output:
 %   graphical display of progess. make sure there is no other output
@@ -27,15 +27,17 @@ function matRad_progress(currentIndex, totalNumberOfEvaluations)
 % LICENSE file.
 %
 % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
- 
+
+if nargin < 3 
+    linereset = false;
+end
+
 % If it's not the first step, erase the stuff printed before
-if (currentIndex == 1)
+if (currentIndex == 1 || linereset)
     fprintf('Progress: ');
-end
- 
-if (currentIndex > 1)
-  Length = numel(sprintf('%3.2f %%',(currentIndex-1)/totalNumberOfEvaluations*100));
-  fprintf(repmat('\b',1,Length));
+else
+    length = numel(sprintf('%3.2f %%',(currentIndex-1)/totalNumberOfEvaluations*100));
+    fprintf(repmat('\b',1,length));
 end
  
 % Print the progress tool
@@ -45,5 +47,7 @@ function matRad_progress(currentIndex, totalNumberOfEvaluations)
 if (currentIndex == totalNumberOfEvaluations)
     fprintf('\n');
 end
- 
+
 end
+
+