Question StructuredBuffer on Quest 2 with Vulkan and Single Pass Instanced not working?

Hey guys,
I'm trying to use a compute shader on the quest 2 for some material changes. I got it to work on desktop but I have trouble when I use it on the quest, while using Vulkan and Single Pass Instanced as my settings. I could use Multipass to have it work but I would prefer not using the less performant setting if possible.
Trying it from the editor make it run in the quest, just not when it's an APK build.

I wasn't able to find other posts with the same issue, only similar cases that got fixed but not wiht fixes that I could apply here. Maybe I'm missing something as I'm still fairly new to shader coding.
I think I was able to narrow it down to the StructuredBuffer not existing or not working when using it as a Standalone build. The object with the material is still there but not visible to me.

Thanks for any help in advance

Code (CSharp):

1. SubShader
2.     {
3.         Tags { "RenderType"="Opaque" }
4.         LOD 100
5.  
6.         Pass
7.         {
8.             CGPROGRAM
9.             #pragma vertex vert
10.             #pragma fragment frag
11.          
12.             #include "UnityCG.cginc"
13.  
14.             struct appdata
15.             {
16.                 float4 vertex : POSITION;
17.                 uint id : SV_VertexID;
18.                 UNITY_VERTEX_INPUT_INSTANCE_ID
19.             };
20.  
21.             struct v2f
22.             {
23.                 float4 vertex : SV_POSITION;
24.                 float4 color : COLOR;
25.                 UNITY_VERTEX_OUTPUT_STEREO
26.             };
27.  
28.             StructuredBuffer<float4> _ColorBuffer;
29.  
30.             v2f vert (appdata v)
31.             {
32.            
33.                 v2f o;
34.                 UNITY_SETUP_INSTANCE_ID(v);
35.                 UNITY_INITIALIZE_OUTPUT(v2f, o);
36.                 UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
37.                 // copy instance id in the appdata v to the v2g o
38.               //  UNITY_TRANSFER_INSTANCE_ID(v, o);
39.                 o.vertex = UnityObjectToClipPos(v.vertex);
40.                
41.                 o.color = _ColorBuffer[v.id];
42.               //  o.color = _ColorBuffer[0]; // to test if the color buffer is the issue
43.  
44.                
45.                 return o;
46.             }
47.  
48.             fixed4 frag (v2f i) : SV_Target
49.             {
50.                 UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
51.                 return i.color;
52.             }
53.             ENDCG
54.         }
55.     }

 

I was only able to find other people using StructuredBuffer<> and it worked for them, though none were using it in single pass VR cases. I can otherwise only find references to using other compute buffer structures with vulkan but only c++ examples and the used structures aren't valid syntax when I try them. Still not quite sure how the buffer structure could break from changing rendering mode, and I doubt the issue would be in the compute shader since the setup works with opengl. But maybe I'm overlooking something?

Code (CSharp):

1. #pragma kernel CSMain
2.  
3. StructuredBuffer<float3> _VertexBuffer;
4. RWStructuredBuffer<float4> _ColorBuffer;
5. float4x4 _LocalToWorld;
6. float4 _Sphere;
7. uint _VertexCount;
8. float _Intensity;
9.  
10. [numthreads(8,8,1)]
11. void CSMain (uint id : SV_DispatchThreadID)
12. {
13.     if (id >= _VertexCount) {
14.         return;
15.     }
16.  
17.     float3 pos = mul(_LocalToWorld, float4(_VertexBuffer[id], 1.0)).xyz;
18.     float mask = 1.0 - saturate(distance(pos, _Sphere.xyz) / _Sphere.w);
19.  
20.     _ColorBuffer[id] -= float4(mask *(_Intensity), 0, mask*(1- _Intensity), 1) ;
21.    
22. }