Barrier blocks show as LODs in survival mode

[BlueJayofEvil]

I'm not sure if this is an intended feature or a bug so I figured I'd report it just in case.
Long story short, a server I play on had some remnants of an old strip of barrier blocks not fully removed near spawn up in the sky from an old forgotten project. Normally these wouldn't have been noticed unless someone was near them in creative mode (i.e. an admin), but because I had flown near the area with Voxy, I was surprised to see the barrier block cancel sign texture had been saved in my LOD data.
To clarify, I'm not an admin nor do I have access to creative mode. The only way I even found these was the LODs stored them and I noticed them from far away.

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