Having issues with Tesseracts... help?

Got two tesseracts configured for teleporting RF over a short distance. Both chunkloaded, both have send/recieve configured correctly, both have redstone control disabled. Both of them have gone all spooky and glowy, as if they're fully configured. But they're not working.

When I check them out in Waila, I see that they're still on frequency 0, but when I open up their GUIs I see that they're configured to send and recieve over frequency 2 (as I selected).

Is this a known issue?