Fixed issue which could cause redundant checks to be performed on sprites, potentially resulting in a crash.

Removed error throw for null sound data, as this would trigger for external sounds.
Removed error throw for missing audio and group id
Fixed margin parameter being exported with invalid parameter name
Fixed playback_speed_type being imported with an incorrect parameter name

Author: SolventMercury

Scripts/HgExport.csx

@@ -860,19 +860,19 @@ void AddSpriteParams(string assetName, UndertaleData VanillaData, UndertaleData
 		paramValues.Add(modSprite.Height.ToString());
 	}
 	if (vanillaSprite.MarginLeft != modSprite.MarginLeft) {
-		paramNames.Add("margin_");
+		paramNames.Add("margin_left");
 		paramValues.Add(modSprite.MarginLeft.ToString());
 	}
 	if (vanillaSprite.MarginRight != modSprite.MarginRight) {
-		paramNames.Add("margin_");
+		paramNames.Add("margin_right");
 		paramValues.Add(modSprite.MarginRight.ToString());
 	}
 	if (vanillaSprite.MarginBottom != modSprite.MarginBottom) {
-		paramNames.Add("margin_");
+		paramNames.Add("margin_bottom");
 		paramValues.Add(modSprite.MarginBottom.ToString());
 	}
 	if (vanillaSprite.MarginTop != modSprite.MarginTop) {
-		paramNames.Add("margin_");
+		paramNames.Add("margin_top");
 		paramValues.Add(modSprite.MarginTop.ToString());
 	}
 	if (vanillaSprite.Transparent != modSprite.Transparent) {
@@ -1077,7 +1077,8 @@ void AddSoundData (string assetName, UndertaleData VanillaData, UndertaleData Mo
 	byte[] modSoundData = GetSoundData(modSound, ModData, ModDataPath, false);
 	if (modSoundData == null) {
 		// TODO: Handle this better
-		throw new Exception(String.Format("ERROR: {0}'s sound data was null, cannot export.", assetName));
+		//throw new Exception(String.Format("ERROR: {0}'s sound data was null, cannot export.", assetName));
+		return;
 	}
 
 	string outPath = String.Format("{0}.snd", Path.Join(soundPath, assetName));
@@ -1546,11 +1547,13 @@ void CompareSpriteForAddition(UndertaleSprite modSprite, TempDataContainer tempV
 			lock(AssetsAlteredDataDict) {
 				AssetsAlteredDataDict.Add(modSprite.Name.Content, AssetType.Sprite);
 			}
+			return;
 		}
 		if (!AllMaskEquals(vanillaSprite, modSprite)) {
 			lock(AssetsAlteredDataDict) {
 				AssetsAlteredDataDict.Add(modSprite.Name.Content, AssetType.Mask);
 			}
+			return;
 		}
 	}
 }