When I start Sonar with only my TC interface running it appears in Audio -> Devices, Driver Settings, Sync and Caching and MIDI -> Devices (as does my Virus Ti even though it's off). No mention anywhere of the Axe Fx.
If I start Sonar without the TC interface running it appears nowhere (though again my Virus Ti is listed even though it's off). Again, no mention anywhere of the Axe Fx.
If the TC interface is on and Sonar is running, then I switch-on the Axe Fx, sometimes it play nice (asks me if I want to use it as an interface, I select 'no' and it doesn't even appear in the driver listings). However, sometimes it either ignores my selection and switches to the Axe Fx anyway, or doesn't even give me a selection and switches to the Axe Fxe, or, as it's just done now, doesn't even recognise the Axe Fx being switched-on at all).
If I start Sonar with only the Axe Fx on, Sonar automatically uses the Axe Fx drivers.
If I then switch on the TC interface too, it is not recognised / nothing pops-up.
Howsoever it occurs, once the Axe Fx has stolen control, all my TC inteface drivers are greyed-out. I cannot switch to them. I have to turn-off the Axe Fx, at which point Sonar tells me there are no inputs and outputs. Even if I exit Sonar without saving any changes, switch-off the Axe Fx and restart Sonar, it does not revert to using the TC drivers and gives me the same 'missing inputs / outputs' message. I then have to manually tick all the TC's inputs and outputs and re-assign all my track ins/outs (quite a laborious process!)