You will know more about the Gigrig than I do, especially as it is sitting in front of you. The manual on their Web Site does not mention MIDI.
Assuming that you are controlling the 'Factor with MIDI, it may be that you are only generating MIDI Program Changes, which allow you to load presets, but not Continuous Controllers (CC), which are needed to control banks, tap tempo etc.
Some lesser pedal boards only offer Program Change without CC – since I cannot find the Gigrig MIDI info I don't know if it falls into this group.
Is it possible that you have a MIDI 8 rather than a Pro 14 ? This looks like a Pro 14 but has MIDI. It can be programmed to either send CC OR Program Change – not both. This could explain your problems.