My tuner told me it appears my Wideband O2 is slightly off compared to the narrowband O2's and fueling

"Your narrow band oxygen sensors and LTFTs are both reporting that we have WOT fueling within 3% of perfect. But your wideband is reading off by approximately 8%." -Tuner

What would be causing this issue? Would the wideband need to be re-calibrated or could this be something related to how its setup in HPTuners? I didn't do any customization to HPTuners for the ballenger.

Appreciate any help.