Issue Description:

Fluid and Pressurized Fluid Conduits, when placed vertically becomes invisible. Problem however does not occur when fluids are passing through it, only when empty.

Screenshots Provided:

1. https://i.zxicar.us/dttxa18_Y4v7.png - Conduit texture in the middle is missing.
2. https://i.zxicar.us/y3HEGcF_7bKO.png - Ditto, longer vertical conduit line.
3. https://i.zxicar.us/8RnS3E1Haq9C.png - Problem however does not occur when any conduits are connected to it horizontally.

Affected Versions (Do not use "latest"):

• EnderIO: EnderIO-1.10.2-3.0.1.120_beta
• EnderCore: EnderCore-1.10.2-0.4.1.56-beta
• Minecraft: 1.10.2
• Forge: forge-12.18.2.2107

Your most recent log file where the issue was present:

N/A - Not a crash.

Seen this in 112 too, not limited to vertical either, Seen it happen in horizontal ones that have been placed for a while and were visible at the start (Typical that I cant find any doing so now)

Edit:
Also fairly sure I've seen it in conduits other than fluid.

Finally seen a non fluid conduit being invisible to grab a screenshot.

Some added quirkiness scrolling through the wrench view modes through to power shows the conduit but back to "show all" view it returns to rendering invisible again.

This may help. Possibly.