diff --git a/.appveyor.yml b/.appveyor.yml
index c309060076..179e1724ae 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -24,11 +24,11 @@ environment:
       CONFIGURATION: Release
       TOOLSET: v141
       APPVEYOR_BUILD_WORKER_IMAGE: "Visual Studio 2017"
-    - GENERATOR: "Visual Studio 14 2015 Win64"
+    - GENERATOR: "Visual Studio 15 2017 Win64"
       CONFIGURATION: Debug
-      TOOLSET: v140_xp
-      APPVEYOR_BUILD_WORKER_IMAGE: "Visual Studio 2015"
-
+      TOOLSET: v141
+      APPVEYOR_BUILD_WORKER_IMAGE: "Visual Studio 2017"
+      
 build_script:
   - md build
   - cd build
diff --git a/src/p_saveg.cpp b/src/p_saveg.cpp
index fcb075e0f7..6248dab3e1 100644
--- a/src/p_saveg.cpp
+++ b/src/p_saveg.cpp
@@ -73,6 +73,7 @@ FSerializer &Serialize(FSerializer &arc, const char *key, line_t &line, line_t *
 			("alpha", line.alpha, def->alpha)
 			.Args("args", line.args, def->args, line.special)
 			("portalindex", line.portalindex, def->portalindex)
+			("locknumber", line.locknumber, def->locknumber)
 			// Unless the map loader is changed the sidedef references will not change between map loads so there's no need to save them.
 			//.Array("sides", line.sidedef, 2)
 			.EndObject();
diff --git a/wadsrc/static/zscript/level_compatibility.txt b/wadsrc/static/zscript/level_compatibility.txt
index a78d1fc136..e007e98dd7 100644
--- a/wadsrc/static/zscript/level_compatibility.txt
+++ b/wadsrc/static/zscript/level_compatibility.txt
@@ -514,6 +514,8 @@ class LevelCompatibility play
 				ClearSectorTags(34);
 				ClearSectorTags(83);
 				ClearSectorTags(85);
+				// Visually align floors between crushers
+				SetLineSpecial(3, Transfer_Heights, 14, 6);
 				break;
 			}