Just tested this and got it working on m364

I think you have to ensure that the remote Catalyst App (master) is running and broadcasting BEFORE you startup the local Catalyst App (slave) - otherwise it looks as if it hasn't saved the settings.

What is your startup order?

It needs to be:
1) remote Catalyst broadcasting all info
then
2) local Catalyst which will be slaved to Remote Catalyst (the Mac with the remote settings saved)

BEWARE - if you startup in the reverse order - you will have to re-select the remote Catalyst AGAIN from the local Catalyst remote server list.

S