Internal Error happens randomly while i am setting up inputs and outputs in FX Chains window using the front panel. If that means the unit is defective, then I have to find out to ask for a replacement.
Second issue is that simply in some sessions (in sessions I created for example, I also compared the settings to the Sessions that work) I cannot assign Analog 3/4 in and outs on the second stereo pair. It always reverts back to Analog 1/2 when i hit connect. Analog 1/2 is already connected in the first stereo pair. If you need more info I will try to do screen recording which by the way i have no idea how to do it.