diff --git a/src/posix/sdl/sdlglvideo.cpp b/src/posix/sdl/sdlglvideo.cpp
index 106b98d79..1e602f102 100644
--- a/src/posix/sdl/sdlglvideo.cpp
+++ b/src/posix/sdl/sdlglvideo.cpp
@@ -62,17 +62,20 @@ CUSTOM_CVAR(Bool, gl_debug, false, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINI
 {
 	Printf("This won't take effect until " GAMENAME " is restarted.\n");
 }
-CUSTOM_CVAR(Bool, vid_glswfb, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
+#ifdef __arm__
+CUSTOM_CVAR(Bool, vid_glswfb, false, CVAR_NOINITCALL)
 {
 	Printf("This won't take effect until " GAMENAME " is restarted.\n");
 }
-
-#ifdef __arm__
-CUSTOM_CVAR(Bool, gl_es, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
+CUSTOM_CVAR(Bool, gl_es, false, CVAR_NOINITCALL)
 {
 	Printf("This won't take effect until " GAMENAME " is restarted.\n");
 }
 #else
+CUSTOM_CVAR(Bool, vid_glswfb, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
+{
+	Printf("This won't take effect until " GAMENAME " is restarted.\n");
+}
 CUSTOM_CVAR(Bool, gl_es, false, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
 {
 	Printf("This won't take effect until " GAMENAME " is restarted.\n");
diff --git a/src/scripting/backend/dynarrays.cpp b/src/scripting/backend/dynarrays.cpp
index 2262af154..c12e602a0 100644
--- a/src/scripting/backend/dynarrays.cpp
+++ b/src/scripting/backend/dynarrays.cpp
@@ -99,7 +99,7 @@ DEFINE_ACTION_FUNCTION(FDynArray_I8, Delete)
 {
 	PARAM_SELF_STRUCT_PROLOGUE(FDynArray_I8);
 	PARAM_INT(index);
-	PARAM_INT(count);
+	PARAM_INT_DEF(count);
 	self->Delete(index, count);
 	return 0;
 }
@@ -202,7 +202,7 @@ DEFINE_ACTION_FUNCTION(FDynArray_I16, Delete)
 {
 	PARAM_SELF_STRUCT_PROLOGUE(FDynArray_I16);
 	PARAM_INT(index);
-	PARAM_INT(count);
+	PARAM_INT_DEF(count);
 	self->Delete(index, count);
 	return 0;
 }
@@ -305,7 +305,7 @@ DEFINE_ACTION_FUNCTION(FDynArray_I32, Delete)
 {
 	PARAM_SELF_STRUCT_PROLOGUE(FDynArray_I32);
 	PARAM_INT(index);
-	PARAM_INT(count);
+	PARAM_INT_DEF(count);
 	self->Delete(index, count);
 	return 0;
 }
@@ -408,7 +408,7 @@ DEFINE_ACTION_FUNCTION(FDynArray_F32, Delete)
 {
 	PARAM_SELF_STRUCT_PROLOGUE(FDynArray_F32);
 	PARAM_INT(index);
-	PARAM_INT(count);
+	PARAM_INT_DEF(count);
 	self->Delete(index, count);
 	return 0;
 }
@@ -511,7 +511,7 @@ DEFINE_ACTION_FUNCTION(FDynArray_F64, Delete)
 {
 	PARAM_SELF_STRUCT_PROLOGUE(FDynArray_F64);
 	PARAM_INT(index);
-	PARAM_INT(count);
+	PARAM_INT_DEF(count);
 	self->Delete(index, count);
 	return 0;
 }
@@ -614,7 +614,7 @@ DEFINE_ACTION_FUNCTION(FDynArray_Ptr, Delete)
 {
 	PARAM_SELF_STRUCT_PROLOGUE(FDynArray_Ptr);
 	PARAM_INT(index);
-	PARAM_INT(count);
+	PARAM_INT_DEF(count);
 	self->Delete(index, count);
 	return 0;
 }
@@ -718,7 +718,7 @@ DEFINE_ACTION_FUNCTION(FDynArray_String, Delete)
 {
 	PARAM_SELF_STRUCT_PROLOGUE(FDynArray_String);
 	PARAM_INT(index);
-	PARAM_INT(count);
+	PARAM_INT_DEF(count);
 	self->Delete(index, count);
 	return 0;
 }
diff --git a/wadsrc/static/zscript/menu/loadsavemenu.txt b/wadsrc/static/zscript/menu/loadsavemenu.txt
index 2154e1015..7fe354317 100644
--- a/wadsrc/static/zscript/menu/loadsavemenu.txt
+++ b/wadsrc/static/zscript/menu/loadsavemenu.txt
@@ -387,7 +387,7 @@ class LoadSaveMenu : ListMenu
 	{
 		if (ev.Type == UIEvent.Type_KeyDown)
 		{
-			if (Selected < manager.SavegameCount())
+			if (Selected != -1 && Selected < manager.SavegameCount())
 			{
 				switch (ev.KeyChar)
 				{