Is this because there isn't a midi equivalent to tilt in midi. MPE X and MPE Y seem to be matched to the pitch and modulation wheels (common to many midi devices) - but perhaps tilt (MPE Z) doesn't have a similar place to match to? Does Shake (which might also be particular to the Orba) record?
Subskybox
Some Orba Presets have Pitch Bend applied (e.g. Tilt Lead) but when recording it does not record the Pitch bending applied during the recording sequence.