Imposible to gen any signal with offset

Hello everybody.

Im trying to gen a signal with offset but its impossible. Neither square or sine wave its gen always possitive. I use the offset slider but not any changes on the signal its made.
The preview of the signal its fine, but the signal out of the gen dont have any offset

I want a signal 4V positive then 0, then 4, then 0… etc, some kind of TTL signal for clock. But, i only get +4 -4 +4…

Even i have tried to customize the wave but the result its the same.

Its similar with any kind of signal. The offset doesnt work.

Any suggestions?

I think you are using the PCSGU250 ?
Please make sure you have selected DC coupling in the oscilloscope.