[1.19.2] Duplicate block outline rendering with main block outline

Hello, I have a problem that's stumped me for a couple of days. I have successfully displayed a block outline at a specified position, the current problem is a secondary box appears that moves around based on the camera rotation and position. I have no idea what is causing this issue so any help would be appreciated.

Also, a block is required at the position in order to display the outline if you are trying to reproduce the problem.

Image of the issue
https://drive.google.com/file/d/1SBh_XaHYCgcnJSRs1mh1fdi9Yg0bCf41/view?pli=1

Code:

        public static void drawBoxAtBlockPos(PoseStack matrixStack, AABB aabbIn, float red, float green, float blue, float alpha, BlockPos pos) {
            Vec3 cam = Minecraft.getInstance().gameRenderer.getMainCamera().getPosition();

            double camX = cam.x, camY = cam.y, camZ = cam.z;

            PoseStack.Pose pose = matrixStack.last();
            MultiBufferSource.BufferSource renderTypeBuffer = Minecraft.getInstance().renderBuffers().bufferSource();
            VertexConsumer bufferIn = renderTypeBuffer.getBuffer(RenderType.lines());

            VoxelShape voxelShape = Shapes.create(aabbIn);
            double originX = pos.getX() - camX, originY = pos.getY() - camY, originZ = pos.getZ() - camZ;

            matrixStack.pushPose();
            GL11.glDisable(GL11.GL_DEPTH_TEST);

            voxelShape.forAllEdges((x0, y0, z0, x1, y1, z1) -> {
                bufferIn.vertex(pose.pose(), (float) (x0 + originX), (float) (y0 + originY), (float) (z0 + originZ))
                        .color(red, green, blue, alpha)
                        .normal(pose.normal(), (float) (x1-x0), (float) (y1-y0), (float) (z1-z0))
                        .endVertex();

                bufferIn.vertex(pose.pose(), (float) (x1 + originX), (float) (y1 + originY), (float) (z1 + originZ))
                        .color(red, green, blue, alpha)
                        .normal(pose.normal(), (float) (x1-x0), (float) (y1-y0), (float) (z1-z0))
                        .endVertex();

            });

            renderTypeBuffer.endBatch(RenderType.lines());

            GL11.glEnable(GL11.GL_DEPTH_TEST);

            matrixStack.popPose();
        }


        @SubscribeEvent
        public static void onRenderWorldEvent(RenderLevelStageEvent event) {
            final GameRenderer gameRenderer = Minecraft.getInstance().gameRenderer;
            Player player = Minecraft.getInstance().player;

            gameRenderer.resetProjectionMatrix(event.getProjectionMatrix());
            
            BlockPos thePos = new BlockPos(0, 67, 1);

            if (player.level.isClientSide) {
                if (player.level.getBlockState(thePos) != Blocks.AIR.defaultBlockState() && player.level.getBlockState(thePos) != Blocks.CAVE_AIR.defaultBlockState()) {
                    AABB aabb = player.level.getBlockState(thePos).getShape(player.getLevel(), new BlockPos(0, 0, 0), CollisionContext.of(player)).optimize().bounds();
                    drawBoxAtBlockPos(event.getPoseStack(), aabb, 1.0F, 1.0F, 1.0F, 1.0F, thePos);
                }
            }
        }