BauSystem_12/src/de/steamwar/bausystem/commands/TPSLimit_12.java

@@ -42,8 +42,10 @@ class TPSLimit_12 {
             packets.add(new PacketPlayOutEntityVelocity(entity.getEntityId(), 0, 0, 0));
             packets.add(new PacketPlayOutEntityTeleport(((CraftEntity) entity).getHandle()));
 
+            if (entity instanceof TNTPrimed) {
                 net.minecraft.server.v1_12_R1.Entity serverEntity = ((CraftEntity) entity).getHandle();
                 packets.add(new PacketPlayOutEntityMetadata(serverEntity.getId(), serverEntity.getDataWatcher(), true));
+            }
         });
     }
 

BauSystem_15/src/de/steamwar/bausystem/commands/TPSLimit_15.java

@@ -42,8 +42,10 @@ class TPSLimit_15 {
             packets.add(new PacketPlayOutEntityVelocity(entity.getEntityId(), noMotion));
             packets.add(new PacketPlayOutEntityTeleport(((CraftEntity) entity).getHandle()));
 
+            if (entity instanceof TNTPrimed) {
                 net.minecraft.server.v1_15_R1.Entity serverEntity = ((CraftEntity) entity).getHandle();
                 packets.add(new PacketPlayOutEntityMetadata(serverEntity.getId(), serverEntity.getDataWatcher(), true));
+            }
         });
     }