5Ghz GUEST Network not propagating to AiMesh nodes?

[jzchen]

In this image, a 2.4 GHz IoT is already created on the left, VLAN 53, therefore the yellow warning your 2.4 GHz limit has been reached...

 

[bennor]

A reminder from post #4 in case someone misses it. Here is how Asus explains the propagation limitation of Guest Networks.
[Wireless Router] How to set up Guest Network features to Sync to AiMesh node?

2. This feature can only be configured on the AiMesh router. Guest network is currently designed to allow the first set of each band (2.4G, 5G, 5G-1) available to the AiMesh node. Only one set is available for each band.