Fix arrows being invisible when viewed from specific angles

src/main/java/eu/crushedpixel/replaymod/mixin/MixinRenderArrow.java

@@ -0,0 +1,21 @@
+package eu.crushedpixel.replaymod.mixin;
+
+import eu.crushedpixel.replaymod.replay.ReplayHandler;
+import net.minecraft.client.renderer.culling.ICamera;
+import net.minecraft.client.renderer.entity.Render;
+import net.minecraft.client.renderer.entity.RenderArrow;
+import net.minecraft.client.renderer.entity.RenderManager;
+import net.minecraft.entity.Entity;
+import org.spongepowered.asm.mixin.Mixin;
+
+@Mixin(RenderArrow.class)
+public abstract class MixinRenderArrow extends Render {
+    protected MixinRenderArrow(RenderManager renderManager) {
+        super(renderManager);
+    }
+
+    @Override
+    public boolean shouldRender(Entity entity, ICamera camera, double camX, double camY, double camZ) {
+        return ReplayHandler.isInReplay() || super.shouldRender(entity, camera, camX, camY, camZ);
+    }
+}

src/main/resources/mixins.replaymod.json

@@ -7,6 +7,7 @@
     "MixinEntityRenderer",
     "MixinMinecraft",
     "MixinRender",
+    "MixinRenderArrow",
     "MixinRendererLivingEntity",
     "MixinRenderGlobal",
     "MixinRenderItem",