Three stations here (#1648, #3231 & #4208).
Can Manage Devices just fine on iPhoneX (iOS v11.4.1) WF App v2.32 (176) and on iPad Mini2 (iOS v10.3.3) WFApp v2.20 (161).
When attempting to Manage Devices on MacBookPro (OSX High Sierra v10.13.2) with Safari v11.0.2 no matter which Station I select, the device list only shows the devices on Station 1648 (Air 5065 & Sky 12117).
Unable to find a way to see the devices on the other two stations with MacBookPro/Safari.
EDIT: Also . . . same exact problem found on the MacBookPro with Firefox Quantum v62.0 browser.