Is it a mod compatibility issue?

No

If it's a mod compatibility issue, please provide the link(s) to the incompatible mod(s)

No response

Minecraft version

1.20.2

Describe the issue

Mirrors appear to lack any draw distance and are strangely rendering the blocks they're made from. See video for more information: https://cdn.discordapp.com/attachments/190944839183892481/1185933335009165322/mirrorbroke.mp4

Does this issue occur with the mirrors that are created via flint-and-steel naturally? (In the video the mirror seems modified by commands.)

I initially created it naturally using flint and steel, I only modified the destination to provide more information about the issue.

Does this happen with no other mods installed? (Such as Figura and other mods like it)

Additionally, the same thing happens with portals that have been turned into 'fake enterable mirrors,' it happens with all mirrors no matter how they're created or edited, but it does not happen with normal portals that have simply been turned around 180 degrees. https://cdn.discordapp.com/attachments/190944839183892481/1186118722562297926/allmirrorbroke.mp4

Yes.

Interestingly, mirror rendering appears to function perfectly fine in Minecraft version 1.20.1, in Forge with Sinytra Connector. I have not tested it in Fabric 1.20.1.

Should be fixed in 4.1.3

I can reproduce the issue. Going to fix.