Trouble with Spire of Necromancer Lord

I have Undeath Remastered, Classical Lichdom, Spire of the Remnant Lord, and finally Spire of the Necromancer Lord installed. The last of these is basically a re-skin of Spire of the Remnant Lord for liches, and the requirement for entry to the Spire is supposed to switch from vampirism to lichdom.

I've completed Path of Transcendence by performing the lich ritual (the lichual?) and am now a lich. I traveled to the Spire - But the gate is still down in front of the main door. I can enter the crypt, but that is similarly gated off from the Spire Heart inside.

So apparently it's not detecting that I am a lich?

I can't find any notes on the mod pages to indicate either an issue or a patch for this.

Has anyone else tried this?