diff --git a/source/glest_game/type_instances/faction.cpp b/source/glest_game/type_instances/faction.cpp
index 205a54ad..92df770d 100644
--- a/source/glest_game/type_instances/faction.cpp
+++ b/source/glest_game/type_instances/faction.cpp
@@ -386,6 +386,15 @@ void FactionThread::execute() {
 
 						if(minorDebugPerformance && (chrono.getMillis() - elapsed2) >= 1) printf("Faction [%d - %s] #2-unit threaded updates on frame: %d for [%d] unit # %d, unitCount = %d, took [%lld] msecs\n",faction->getStartLocationIndex(),faction->getType()->getName().c_str(),currentTriggeredFrameIndex,faction->getUnitPathfindingListCount(),j,unitCount,(long long int)chrono.getMillis() - elapsed2);
 					}
+					else {
+						if(SystemFlags::getSystemSettingType(SystemFlags::debugWorldSynch).enabled == true) {
+							float updateProgressValue = unit->getUpdateProgress();
+							char szBuf[8096]="";
+							snprintf(szBuf,8096,"unit->needToUpdate() returned: %d updateProgressValue: %f",update,updateProgressValue);
+							unit->logSynchDataThreaded(__FILE__,__LINE__,szBuf);
+						}
+
+					}
 				}
 
 				if(minorDebugPerformance && chrono.getMillis() >= 1) printf("Faction [%d - %s] threaded updates on frame: %d for [%d] units took [%lld] msecs\n",faction->getStartLocationIndex(),faction->getType()->getName().c_str(),currentTriggeredFrameIndex,faction->getUnitPathfindingListCount(),(long long int)chrono.getMillis());
diff --git a/source/glest_game/type_instances/unit.cpp b/source/glest_game/type_instances/unit.cpp
index c1935c17..2ef0f1ab 100644
--- a/source/glest_game/type_instances/unit.cpp
+++ b/source/glest_game/type_instances/unit.cpp
@@ -1860,7 +1860,7 @@ const CommandType *Unit::computeCommandType(const Vec2i &pos, const Unit *target
 }
 
 
-bool Unit::needToUpdate() {
+float Unit::getUpdateProgress() {
 	//assert(progress <= 1.f);
 	if(progress > 1.f) {
 		char szBuf[8096]="";
@@ -1874,7 +1874,7 @@ bool Unit::needToUpdate() {
 		throw megaglest_runtime_error(szBuf);
 	}
 
-	bool return_value = false;
+	float newProgress = progress;
 	if(currSkill->getClass() != scDie) {
 		//speed
 		int speed = currSkill->getTotalSpeed(&totalUpgrade);
@@ -1920,9 +1920,17 @@ bool Unit::needToUpdate() {
 		//float speedDenominator = (speedDivider * game->getWorld()->getUpdateFps(this->getFactionIndex()));
 		//float newProgress = progress;
 		//newProgress += (speed * diagonalFactor * heightFactor) / speedDenominator;
-		float newProgress = getUpdatedProgress(progress, game->getWorld()->getUpdateFps(this->getFactionIndex()),
+		newProgress = getUpdatedProgress(progress, game->getWorld()->getUpdateFps(this->getFactionIndex()),
 				speed, diagonalFactor, heightFactor);
 
+	}
+	return newProgress;
+}
+
+bool Unit::needToUpdate() {
+	bool return_value = false;
+	if(currSkill->getClass() != scDie) {
+		float newProgress = getUpdateProgress();
 		if(newProgress >= 1.f) {
 			return_value = true;
 		}
@@ -1933,8 +1941,13 @@ bool Unit::needToUpdate() {
 float Unit::getUpdatedProgress(float currentProgress, int updateFPS, int speed,
 		float diagonalFactor, float heightFactor) {
 
+	truncateDecimal<float>(diagonalFactor);
+	truncateDecimal<float>(heightFactor);
+
 	float speedDenominator = (speedDivider * updateFPS);
+	truncateDecimal<float>(speedDenominator);
 	float newProgress = currentProgress;
+	truncateDecimal<float>(newProgress);
 	newProgress += ((speed * diagonalFactor * heightFactor) / speedDenominator);
 	truncateDecimal<float>(newProgress);
 	return newProgress;
diff --git a/source/glest_game/type_instances/unit.h b/source/glest_game/type_instances/unit.h
index 8185f666..86efb65c 100644
--- a/source/glest_game/type_instances/unit.h
+++ b/source/glest_game/type_instances/unit.h
@@ -724,6 +724,7 @@ public:
 
 	std::string toString() const;
 	bool needToUpdate();
+	float getUpdateProgress();
 
 	bool isLastStuckFrameWithinCurrentFrameTolerance();
 	inline uint32 getLastStuckFrame() const { return lastStuckFrame; }