Default [Q] Neatrom 5.6 Full, 2g/3g toggle bug?

hi,

I am using the NeatRom 5.6 Full and I am experiencing a strange behaviour.

When a select 3G only on the Toggle button in notification panel it works, but after a few second (or after a screen switch off) it becomes "Auto 2G/3G" even if it is still only 3G on Setting>Network (sorry I have the italian language, so the name may be different).

is it a NeatRom bug?

thx for answers