Reflection shader has inverse direction

I have this shader for mirror-like reflection. It works ok but for the reflection direction. If I apply this on a sphere and look at it, it should reflect what's behind me, however it "reflects" what's in front. If I uncomment the Matrix [_Reflection] line, it swaps the Y direction, however it's the Z direction that should be flipped.

Any ideas anyone? Thanks

 Shader "Kweetet/Transparent/Unlit Reflective" 
 {
     Properties
     {
         _Color ("Main Color", Color) = (1,1,1,1)
         _Emission ("Emmisive Color", Color) = (0,0,0,0)
         _MainTex ("Base (RGB)", 2D) = "white" { }
         _Cube ("Reflection Cubemap", Cube) = "" { TexGen CubeReflect  }       
     }
     
     SubShader 
     {
         Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent"}
         LOD 100
         ZWrite Off
         Blend SrcAlpha OneMinusSrcAlpha 
 
         Pass 
         {
             Color [_Color]
             Lighting Off
             SetTexture [_MainTex] 
             { 
                 combine texture * primary
             }
             SetTexture [_MainTex] 
             { 
                 constantColor [_Emission]
                 combine previous + constant
             }
             SetTexture [_Cube] 
             { 
                 //Matrix [_Reflection]
                 combine texture * previous, previous
             }
         }
     } 
 }