diff --git a/oscar64/InterCode.cpp b/oscar64/InterCode.cpp
index 56d7a41..d2a169b 100644
--- a/oscar64/InterCode.cpp
+++ b/oscar64/InterCode.cpp
@@ -7806,6 +7806,8 @@ static bool SameSingleAssignment(const GrowingInstructionPtrArray& tunified, con
 			{
 				return false;
 			}
+			else if (!tunified[ins->mSrc[i].mTemp])
+				return false;
 			else if (tunified[ins->mSrc[i].mTemp] != tunified[cins->mSrc[i].mTemp])
 				return false;
 		}
diff --git a/oscar64/oscar64.cpp b/oscar64/oscar64.cpp
index 825eb2b..ac960d9 100644
--- a/oscar64/oscar64.cpp
+++ b/oscar64/oscar64.cpp
@@ -74,7 +74,7 @@ int main2(int argc, const char** argv)
 
 #else
 		strcpy(strProductName, "oscar64");
-		strcpy(strProductVersion, "1.23.211");
+		strcpy(strProductVersion, "1.23.212");
 
 #ifdef __APPLE__
 		uint32_t length = sizeof(basePath);
diff --git a/oscar64/oscar64.rc b/oscar64/oscar64.rc
index 65dc55b..12d7cd4 100644
--- a/oscar64/oscar64.rc
+++ b/oscar64/oscar64.rc
@@ -25,8 +25,8 @@ LANGUAGE LANG_ENGLISH, SUBLANG_NEUTRAL
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,23,211,0
- PRODUCTVERSION 1,23,211,0
+ FILEVERSION 1,23,212,0
+ PRODUCTVERSION 1,23,212,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -43,12 +43,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "oscar64"
             VALUE "FileDescription", "oscar64 compiler"
-            VALUE "FileVersion", "1.23.211.0"
+            VALUE "FileVersion", "1.23.212.0"
             VALUE "InternalName", "oscar64.exe"
             VALUE "LegalCopyright", "Copyright (C) 2021"
             VALUE "OriginalFilename", "oscar64.exe"
             VALUE "ProductName", "oscar64"
-            VALUE "ProductVersion", "1.23.211.0"
+            VALUE "ProductVersion", "1.23.212.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/oscar64setup/oscar64setup.vdproj b/oscar64setup/oscar64setup.vdproj
index df337d0..7f9ef82 100644
--- a/oscar64setup/oscar64setup.vdproj
+++ b/oscar64setup/oscar64setup.vdproj
@@ -5504,15 +5504,15 @@
         {
         "Name" = "8:Microsoft Visual Studio"
         "ProductName" = "8:oscar64"
-        "ProductCode" = "8:{E5A90B4B-CA2A-43EC-9597-90010989AF33}"
-        "PackageCode" = "8:{C6265FB3-0498-45EF-827C-27788C57AFAF}"
+        "ProductCode" = "8:{56AFEF31-4A48-403F-A6CA-601769444F71}"
+        "PackageCode" = "8:{3797CD46-BC0B-40C2-93E5-B8226ACD9F91}"
         "UpgradeCode" = "8:{9AB61EFF-ACAC-4079-9950-8D96615CD4EF}"
         "AspNetVersion" = "8:2.0.50727.0"
         "RestartWWWService" = "11:FALSE"
         "RemovePreviousVersions" = "11:TRUE"
         "DetectNewerInstalledVersion" = "11:TRUE"
         "InstallAllUsers" = "11:FALSE"
-        "ProductVersion" = "8:1.23.211"
+        "ProductVersion" = "8:1.23.212"
         "Manufacturer" = "8:oscar64"
         "ARPHELPTELEPHONE" = "8:"
         "ARPHELPLINK" = "8:"