ToonShader wont compile on ps4 build

[Kyrw]

When compiling Toon_DoubleShadeWithFeather shader for PS4, the erros on the attached file show up. I used the compile and show code button on the shader inspector window, setting it to Custom Platform - PS4.

Here is 2 of the erros and, just as a sample:

Shader error in 'UnityChanToonShader/Toon_DoubleShadeWithFeather': Program 'vert', ambiguous call to 'lerp'. Found 3 possible candidates: at Assets/ThirdParty/Toon/Shader/UCTS_DoubleShadeWithFeather.cginc(229) (on ps4)

Shader error in 'UnityChanToonShader/Toon_DoubleShadeWithFeather': Program 'frag', ambiguous call to 'dot'. Found 3 possible candidates: at Assets/ThirdParty/Toon/Shader/UCTS_DoubleShadeWithFeather.cginc(175) (on ps4)

I was able to fix them by trying to fix the "ambiguous call" that the compiler was complaining about:
UCTS_DoubleShadeWithFeather.cginc(175) :
was
o.mirrorFlag = dot(crossFwd, UNITY_MATRIX_V[2]) < 0 ? 1 : -1;
changed to:
o.mirrorFlag = dot(crossFwd, UNITY_MATRIX_V[2].xyz) < 0 ? 1 : -1;

UCTS_DoubleShadeWithFeather.cginc(229):
was
float3 lightColor = max(0, lerp(addPassLightColor, lerp(0,min(addPassLightColor,addPassLightColor/pureIntencity),_WorldSpaceLightPos0.w),_Is_Filter_LightColor));
changed to:
float3 lightColor = max(0, lerp(addPassLightColor, lerp(float3(0,0,0),min(addPassLightColor,addPassLightColor/pureIntencity),_WorldSpaceLightPos0.w),_Is_Filter_LightColor));

UCTS_Outline.cginc(90):
was
float signVar = dot(normalize(v.vertex),normalize(v.normal))<0 ? -1 : 1;
changed to:
float signVar = dot(float(normalize(v.vertex)),float(normalize(v.normal)))<0 ? -1 : 1;

I'm not sure if those are the correct fixes for the erros, but those worked for me. As such, I would like have a confirmation if this fixes are correct or what are the correct ones.

Setup:
Unity 2019.2.11f1
Unity-Chan Toon Shader Ver.2.0.7
PS4 SDK: 6.500 (6.720.001)

Toonshader compile output error.txt

Regards

[Nobuyuki-Kobayashi]

Thank you for your information.
We'll research it.

[H3idi-X]

We are not able to use dev-kit because of this pandemic yet.