All four (Basic/Advanced/Elite/Ultimate) Logistal Transporters in Mekanism have stopped interfacing with Tech Reborn Machines (certainly with the Centrifuge, Grinder and Sawmill).
It worked fine in V5.6, I skipped V5.7, and now no longer works. I haven't seen any other connectivity issues with the Transporters or the Tech Reborn Machines.

are you able to force the transporter mode with the configurator (i.e. configure the pipe to pull) -- also a possibility could be if TechReborn has some new sidedness that might need to be configured in the TR GUI or with an upgrade?

My bad, didn't spot the new Configure Slots button.