I have not either a problem with autorisation!
And although I prefer Splat for mixing (ProChannel, layout, operation), most of the time I use Samplitude for recording, because it is more stable even on my weakly powered laptop (i5-5200U, 8GB, 1TB SSHD). Seems it requires obviously less resources for recording! With Samp I can use much lower buffer size having less latency without having dropouts (with the same hardware). Furthermore with Splat and CbB I experienced a lot of dropouts after some runs with loop recording. That happened never with Samplitude!
Marc