1.16 pre4

core/src/main/java/nl/matsv/viabackwards/protocol/protocol1_15_2to1_16/Protocol1_15_2To1_16.java

@@ -185,6 +185,20 @@ public class Protocol1_15_2To1_16 extends BackwardsProtocol<ClientboundPackets1_
             }
         });
 
+        registerIncoming(ServerboundPackets1_14.PLAYER_ABILITIES, new PacketRemapper() {
+            @Override
+            public void registerMap() {
+                handler(wrapper -> {
+                    byte flags = wrapper.read(Type.BYTE);
+                    flags &= 2; // Only take the isFlying value (everything else has been removed and wasn't used anyways)
+                    wrapper.write(Type.BYTE, flags);
+
+                    wrapper.read(Type.FLOAT);
+                    wrapper.read(Type.FLOAT);
+                });
+            }
+        });
+
         cancelIncoming(ServerboundPackets1_14.UPDATE_JIGSAW_BLOCK);
     }