Guest Wifi on Marble

I have a Marble Router, using 4.7.2 firmware.
Even though I turn off the guest WiFi, it comes back on. Even with a reset. Any idea? Do I have to send a log to review it?

Hello,

Probably it be a misunderstanding caused by the browser cache?
Is it possible to access the GL GUI on other browsers or other PCs or phones, will the guest WiFi still be enabled?

I did not reproduce this issue on my B3000/Marble.

I can see it in my pc, in the app and other devices...
I have scheduled a reboot every Sunday and Wednesday, and always is "ON"

Sounds like a bug, does this also happen if you reset the Marble to factory settings, can you see the guest WiFi then?