I'm on version OpenComputers-MC1.12.2-1.7.5.192.jar.

When I connect a server to side 4 of a rack, which is labelled as "Right", it actually sees the components on the left side of the rack.
When I connect a server to side 5 of a rack, which is labelled as "Left", it actually sees the components on the right side of the rack.
The other 3 sides all work as I'd expect.

I think the labels should be switched, so side 4 is listed as "Left" and 5 is "Right".

Nevermind, I just realized it's using the rack's left and right, not my left and right when I look at it from the front.