diff --git a/include/zeus/CMatrix3f.hpp b/include/zeus/CMatrix3f.hpp
index 488c2f1..8581df5 100644
--- a/include/zeus/CMatrix3f.hpp
+++ b/include/zeus/CMatrix3f.hpp
@@ -22,13 +22,13 @@ public:
   constexpr CMatrix3f(float m00, float m01, float m02, float m10, float m11, float m12, float m20, float m21, float m22)
   : m{{m00, m10, m20}, {m01, m11, m21}, {m02, m12, m22}} {}
 
-  constexpr CMatrix3f(const CVector3f& scaleVec) {
+  CMatrix3f(const CVector3f& scaleVec) {
     m[0][0] = scaleVec[0];
     m[1][1] = scaleVec[1];
     m[2][2] = scaleVec[2];
   }
 
-  constexpr CMatrix3f(float scale) : CMatrix3f(CVector3f(scale)) {}
+  CMatrix3f(float scale) : CMatrix3f(CVector3f(scale)) {}
 
   constexpr CMatrix3f(const CVector3f& r0, const CVector3f& r1, const CVector3f& r2) {
     m[0] = r0;
diff --git a/include/zeus/CMatrix4f.hpp b/include/zeus/CMatrix4f.hpp
index 304aef8..454f7b9 100644
--- a/include/zeus/CMatrix4f.hpp
+++ b/include/zeus/CMatrix4f.hpp
@@ -20,7 +20,7 @@ public:
                       float m21, float m22, float m23, float m30, float m31, float m32, float m33)
   : m{{m00, m10, m20, m30}, {m01, m11, m21, m31}, {m02, m12, m22, m32}, {m03, m13, m23, m33}} {}
 
-  constexpr CMatrix4f(const CVector3f& scaleVec) {
+  CMatrix4f(const CVector3f& scaleVec) {
     m[0][0] = scaleVec[0];
     m[1][1] = scaleVec[1];
     m[2][2] = scaleVec[2];
@@ -49,10 +49,10 @@ public:
   }
 
   constexpr CMatrix4f(const CMatrix3f& other) {
-    m[0] = other.m[0];
-    m[1] = other.m[1];
-    m[2] = other.m[2];
-    m[3] = CVector4f(0.f, 0.f, 0.f, 1.0f);
+    m[0].mSimd = other.m[0].mSimd;
+    m[1].mSimd = other.m[1].mSimd;
+    m[2].mSimd = other.m[2].mSimd;
+    m[3].mSimd = CVector4f(0.f, 0.f, 0.f, 1.0f).mSimd;
   }
 
   CMatrix4f& operator=(const CMatrix4f& other) {
diff --git a/include/zeus/CTransform.hpp b/include/zeus/CTransform.hpp
index 9e2b9cf..2883d54 100644
--- a/include/zeus/CTransform.hpp
+++ b/include/zeus/CTransform.hpp
@@ -231,7 +231,7 @@ public:
   CVector3f origin;
 };
 
-constexpr CTransform CTransformFromScaleVector(const CVector3f& scale) { return CTransform(CMatrix3f(scale)); }
+inline CTransform CTransformFromScaleVector(const CVector3f& scale) { return CTransform(CMatrix3f(scale)); }
 
 CTransform CTransformFromEditorEuler(const CVector3f& eulerVec);
 
diff --git a/include/zeus/CVector4f.hpp b/include/zeus/CVector4f.hpp
index 8a252f8..8fed7c0 100644
--- a/include/zeus/CVector4f.hpp
+++ b/include/zeus/CVector4f.hpp
@@ -52,7 +52,7 @@ public:
 
   constexpr CVector4f(const CColor& other);
 
-  constexpr CVector4f(const CVector3f& other, float wIn = 1.f) : mSimd(other.mSimd) { mSimd[3] = wIn; }
+  CVector4f(const CVector3f& other, float wIn = 1.f) : mSimd(other.mSimd) { mSimd[3] = wIn; }
 
   static CVector4f ToClip(const zeus::CVector3f& v, float w) { return CVector4f(v * w, w); }