Multiple app issue
I am having a problem getting 2 apps working together. First I am running an iPad 6 with up to date IOS. I have two apps I want to work with—Anytune and Amplitude. I do not want to do any recording or anything fancy just use Amplitude as an amp simulator and Anytune to learn songs on my guitar. When I load Anytune as an input on line one as the only app within Audiobus there is no problem. Once I launch Amplitude as a second input on line 2, I lose all the sound from Anytune. The sound meter in the mixer shows that it is receiving an input but there is only silence at the output which is set as the system speaker / headphones. If I delete Amplitude as an input and close the app right down the sound is still gone. To regain the sound I have to shut everything down and restart again. Any help?