Describe the bug
This occurs both in singleplayer worlds with the mod, and on my Forge server. My friend that plays on my server can see himself in the mirror from your mod, and I think I recall him saying he could see me in the mirror. But when I look in the mirror, if I'm on my server I can see my friend in the mirror, but I can't see myself. My skin doesn't load into the mirror. If I'm in singleplayer, all I can see is the room around me in the mirror. It gives me the illusion that I'm basically a ghost! Can someone please tell me how to fix this?

Crash report
If applicable, put a link here to your crash report. MrCrayfish suggests you upload your report to https://pastebin.com/ and then put the link to the paste here.

To Reproduce
If applicable, the steps to reproduce the behavior:

1. Craft a mirror or get one from the creative menu
2. Place your mirror on a wall
3. Now look at the mirror. If you see yourself, then you can't reproduce this bug. If you can't see yourself, you have the same problem I do.

Screenshots
If applicable, add screenshots to help explain your problem.
Here's what it looks like on my singleplayer world:

Please complete the following information:

• Minecraft Version: 1.12.2
• Mod Version: 6.3.0

Can't see any thing...