diff --git a/code/glTF/glTFImporter.cpp b/code/glTF/glTFImporter.cpp
index 9ecd742f6..3a521554f 100644
--- a/code/glTF/glTFImporter.cpp
+++ b/code/glTF/glTFImporter.cpp
@@ -330,6 +330,10 @@ void glTFImporter::ImportMeshes(glTF::Asset& r)
 
                     case PrimitiveMode_LINES: {
                         nFaces = count / 2;
+                        if (nFaces * 2 != count) {
+                            ASSIMP_LOG_WARN("The number of vertices was not compatible with the LINES mode. Some vertices were dropped.");
+                            count = nFaces * 2;
+                        }
                         faces = new aiFace[nFaces];
                         for (unsigned int i = 0; i < count; i += 2) {
                             SetFace(faces[i / 2], data.GetUInt(i), data.GetUInt(i + 1));
@@ -353,6 +357,10 @@ void glTFImporter::ImportMeshes(glTF::Asset& r)
 
                     case PrimitiveMode_TRIANGLES: {
                         nFaces = count / 3;
+                        if (nFaces * 3 != count) {
+                            ASSIMP_LOG_WARN("The number of vertices was not compatible with the TRIANGLES mode. Some vertices were dropped.");
+                            count = nFaces * 3;
+                        }
                         faces = new aiFace[nFaces];
                         for (unsigned int i = 0; i < count; i += 3) {
                             SetFace(faces[i / 3], data.GetUInt(i), data.GetUInt(i + 1), data.GetUInt(i + 2));
@@ -395,6 +403,10 @@ void glTFImporter::ImportMeshes(glTF::Asset& r)
 
                 case PrimitiveMode_LINES: {
                     nFaces = count / 2;
+                    if (nFaces * 2 != count) {
+                        ASSIMP_LOG_WARN("The number of vertices was not compatible with the LINES mode. Some vertices were dropped.");
+                        count = nFaces * 2;
+                    }
                     faces = new aiFace[nFaces];
                     for (unsigned int i = 0; i < count; i += 2) {
                         SetFace(faces[i / 2], i, i + 1);
@@ -418,6 +430,10 @@ void glTFImporter::ImportMeshes(glTF::Asset& r)
 
                 case PrimitiveMode_TRIANGLES: {
                     nFaces = count / 3;
+                    if (nFaces * 3 != count) {
+                        ASSIMP_LOG_WARN("The number of vertices was not compatible with the TRIANGLES mode. Some vertices were dropped.");
+                        count = nFaces * 3;
+                    }
                     faces = new aiFace[nFaces];
                     for (unsigned int i = 0; i < count; i += 3) {
                         SetFace(faces[i / 3], i, i + 1, i + 2);
diff --git a/code/glTF2/glTF2Importer.cpp b/code/glTF2/glTF2Importer.cpp
index f8e52ae66..ac5698bd7 100644
--- a/code/glTF2/glTF2Importer.cpp
+++ b/code/glTF2/glTF2Importer.cpp
@@ -530,6 +530,10 @@ void glTF2Importer::ImportMeshes(glTF2::Asset& r)
 
                     case PrimitiveMode_LINES: {
                         nFaces = count / 2;
+                        if (nFaces * 2 != count) {
+                            ASSIMP_LOG_WARN("The number of vertices was not compatible with the LINES mode. Some vertices were dropped.");
+                            count = nFaces * 2;
+                        }
                         faces = new aiFace[nFaces];
                         for (unsigned int i = 0; i < count; i += 2) {
                             SetFace(faces[i / 2], data.GetUInt(i), data.GetUInt(i + 1));
@@ -553,6 +557,10 @@ void glTF2Importer::ImportMeshes(glTF2::Asset& r)
 
                     case PrimitiveMode_TRIANGLES: {
                         nFaces = count / 3;
+                        if (nFaces * 3 != count) {
+                            ASSIMP_LOG_WARN("The number of vertices was not compatible with the TRIANGLES mode. Some vertices were dropped.");
+                            count = nFaces * 3;
+                        }
                         faces = new aiFace[nFaces];
                         for (unsigned int i = 0; i < count; i += 3) {
                             SetFace(faces[i / 3], data.GetUInt(i), data.GetUInt(i + 1), data.GetUInt(i + 2));
@@ -604,6 +612,10 @@ void glTF2Importer::ImportMeshes(glTF2::Asset& r)
 
                 case PrimitiveMode_LINES: {
                     nFaces = count / 2;
+                    if (nFaces * 2 != count) {
+                        ASSIMP_LOG_WARN("The number of vertices was not compatible with the LINES mode. Some vertices were dropped.");
+                        count = nFaces * 2;
+                    }
                     faces = new aiFace[nFaces];
                     for (unsigned int i = 0; i < count; i += 2) {
                         SetFace(faces[i / 2], i, i + 1);
@@ -627,6 +639,10 @@ void glTF2Importer::ImportMeshes(glTF2::Asset& r)
 
                 case PrimitiveMode_TRIANGLES: {
                     nFaces = count / 3;
+                    if (nFaces * 3 != count) {
+                        ASSIMP_LOG_WARN("The number of vertices was not compatible with the TRIANGLES mode. Some vertices were dropped.");
+                        count = nFaces * 3;
+                    }
                     faces = new aiFace[nFaces];
                     for (unsigned int i = 0; i < count; i += 3) {
                         SetFace(faces[i / 3], i, i + 1, i + 2);