Question MRTK HoloLens Dashed Line Shader shows as semi transparent on device

Hello!

I am currently working on a hololens application and for directing the user to certain elements we are using bezier lines that go from a text container to an item in the scene. We are doing a dashed line effect with a shader that moves the uv coordinates so the dashes move from origin to target. This works fine in the editor but on the device the line is no longer dashed but a semi transparent line in the color that was choosen.

I spent a few hours trying to find out what is goind wrong so the code might be a bit messed up right now, but it still works in the editor.

Code (CSharp):

1. Shader "Custom/AnimatedLine"
2. {
3.     Properties
4.     {
5.         _MainTex ("Texture", 2D) = "white" {}
6.         _Speed ("AnimationSpeed", float) = 1.0
7.     }
8.     SubShader
9.     {
10.         Tags{ "Queue" = "Transparent+200" "RenderType" = "Cutout"}
11.         LOD 100
12.         Blend SrcAlpha OneMinusSrcAlpha
13.         BlendOp Add
14.         Cull Back
15.  
16.  
17.         Pass
18.         {
19.             ZWrite Off
20.             ZTest Always
21.             CGPROGRAM
22.             #pragma vertex vert
23.             #pragma fragment frag
24.             #pragma multi_compile_instancing
25.  
26.             #include "UnityCG.cginc"
27.  
28.             struct appdata
29.             {
30.                 float4 vertex : POSITION;
31.                 float2 uv : TEXCOORD0;
32.                 float4 color : COLOR;
33.                 UNITY_VERTEX_INPUT_INSTANCE_ID
34.             };
35.  
36.             struct v2f
37.             {
38.                 float2 uv : TEXCOORD0;
39.                 float4 vertex : SV_POSITION;
40.                 float4 color : COLOR;              
41.                 UNITY_VERTEX_INPUT_INSTANCE_ID
42.                 UNITY_VERTEX_OUTPUT_STEREO
43.             };
44.  
45.             float4 _MainTex_ST;
46.             float _Speed;
47.             UNITY_DECLARE_SCREENSPACE_TEXTURE(_MainTex);
48.  
49.             v2f vert (appdata v)
50.             {
51.                 v2f o;
52.                 UNITY_INITIALIZE_OUTPUT(v2f, o)
53.                 UNITY_SETUP_INSTANCE_ID(v);
54.                 UNITY_TRANSFER_INSTANCE_ID(v, o);
55.                 UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
56.                 o.vertex = UnityObjectToClipPos(v.vertex);
57.                 o.uv = v.uv;
58.                 o.color = v.color;
59.                 return o;
60.             }
61.            
62.  
63.             fixed4 frag(v2f i) : SV_Target
64.             {
65.                 UNITY_SETUP_INSTANCE_ID(i);
66.                 fixed4 col = UNITY_SAMPLE_SCREENSPACE_TEXTURE(_MainTex, float2((i.uv.x * _MainTex_ST.x) - (_Time.y * _Speed), i.uv.y));
67.                 col = i.color * col;              
68.                
69.                 return col;
70.             }
71.             ENDCG
72.         }
73.     }
74. }
75.  

Can someone spot the presumably glaring error i have in my code?

Any help or hint is appreciated! Thanks!