diff --git a/src/p_conversation.cpp b/src/p_conversation.cpp
index db5fd400c..a74b9bd18 100644
--- a/src/p_conversation.cpp
+++ b/src/p_conversation.cpp
@@ -1345,12 +1345,14 @@ static void HandleReply(player_t *player, bool isconsole, int nodenum, int reply
 	if (reply->NextNode != 0)
 	{
 		int rootnode = npc->ConversationRoot;
-		if (reply->NextNode < 0)
+		unsigned next = (unsigned)(rootnode + (reply->NextNode < 0 ? -1 : 1) * reply->NextNode - 1);
+
+		if (next < StrifeDialogues.Size())
 		{
-			unsigned next = (unsigned)(rootnode - reply->NextNode - 1);
-			if (gameaction != ga_slideshow && next < StrifeDialogues.Size())
+			npc->Conversation = StrifeDialogues[next];
+
+			if (gameaction != ga_slideshow)
 			{
-				npc->Conversation = StrifeDialogues[next];
 				P_StartConversation (npc, player->mo, player->ConversationFaceTalker, false);
 				return;
 			}
@@ -1359,10 +1361,6 @@ static void HandleReply(player_t *player, bool isconsole, int nodenum, int reply
 				S_StopSound (npc, CHAN_VOICE);
 			}
 		}
-		else
-		{
-			npc->Conversation = StrifeDialogues[rootnode + reply->NextNode - 1];
-		}
 	}
 
 	npc->angle = player->ConversationNPCAngle;
diff --git a/src/p_map.cpp b/src/p_map.cpp
index 3381f763f..30cec2ad2 100644
--- a/src/p_map.cpp
+++ b/src/p_map.cpp
@@ -4297,6 +4297,14 @@ void P_RailAttack(AActor *source, int damage, int offset_xy, fixed_t offset_z, i
 			SpawnShootDecal(source, trace);
 
 	}
+	if (trace.HitType == TRACE_HitFloor || trace.HitType == TRACE_HitCeiling)
+	{
+		AActor* puff = NULL;
+		if (puffclass != NULL && puffDefaults->flags3 & MF3_ALWAYSPUFF)
+		{
+			puff = P_SpawnPuff(source, puffclass, trace.X, trace.Y, trace.Z, (source->angle + angleoffset) - ANG90, 1, 0);
+		}
+	}
 	if (thepuff != NULL)
 	{
 		if (trace.HitType == TRACE_HitFloor &&
diff --git a/wadsrc/static/compatibility.txt b/wadsrc/static/compatibility.txt
index 1bd031ed8..13f0d22a7 100644
--- a/wadsrc/static/compatibility.txt
+++ b/wadsrc/static/compatibility.txt
@@ -403,6 +403,7 @@ D0139194F7817BF06F3988DFC47DB38D // Whispers of Satan map29
 }
 
 D7F6E9F08C39A17026349A04F8C0B0BE // Return to Hadron, e1m9
+19D03FFC875589E21EDBB7AB74EF4AEF // Return to Hadron, e1m9, 2016.01.03 update
 {
 	pointonline
 }