Phone forgets wifi networks after reboot on BOB7 topic

Hi!

I just flashed the new BOB7 firmware and after every reboot the phone forgets all saved wifi networks. I've searched these forums and on google but I haven't found any solution to my problem.

These are the things I've tried so far:

Flash stock via Odin and with no additional apps installed:
Complete factory reset, google account sign in, restore data. Connect to network - after reboot network is gone
Complete factory reset, google account sign in, no data restore. Connect to network - after reboot network is gone
Complete factory reset, no google account sign in (or any other accounts for that matter). Connect to network - after reboot network is gone

I've tried the same steps with ALEXNDR's rom but the result is the same. I then tried flashing Temasek's AOSP ROM and had no problems whatsoever with the network.

I've tried opening the wpa_supplicant.conf file in data/misc/wifi and after having connected to my home network all network details such as SSID and psk show up. When I reboot and look at the file again there are no networks listed

Can anyone help explain what's going on?

Peter :)