PVLAN: Isolated access ports, can't talk to promiscuous ports

I'm setting up a PVLAN on a Dell S5248F (SmartFabric 10). No VMs, no routing, no ACLs.

Testing with 2 hosts (ports 24,25) (isolated) and a server (promiscuous) (LACP port-channel 53).

I got the isolated ports to not talk to each other appropriately, but now they won't talk to the promiscuous port (server).

show vlan private-vlan
Primary Secondary Type Active Ports
------- --------- --------- ------ --------------------------------------------

100 Primary Yes Po53

110 Isolated Yes Eth1/1/24,1/1/25

show interface private-vlan
Interface Vlan PVLAN-Type Interface Type Status
--------- ---- ---------- -------------- --------

Eth1/1/24 110 Isolated Secondary-port true
Eth1/1/25 110 Isolated Secondary-port true
Po53 100 Primary Promiscuous true

The host port configuration:

no shutdown
private-vlan mode secondary-port
switchport access vlan 110

The server port-channel configuration:

no shutdown
private-vlan mode promiscuous
switchport access vlan 100

It's a pretty simple configuration, so I've run into a wall at this point.

My main beef is that I cannot find a sample on this planet (well, on Earth's internet) of a Dell OS10 PVLAN with access ports. All examples point to the Dell User Guide, which has 3 sample configs, and in all of them all PVLAN ports are trunk ports.

Unit is out of warranty.