On a positive note, as I'm sure @peter could do with a pick-me-up 🙂
I just gave ST4 Beta build 1792 a stress test at a band rehearsal and it came through nearly perfectly. There was 1 change in the Assign Actions behaviour between ST3 and ST4 that had me scratching my head (I will raise in a separate post) but the core multitrack audio engine, MIDI engine, Network Sessions, lyric sheets, all worked perfectly over a 4 hour rehearsal.
It was only the musical core of the band so I only had 3 clients (iPad 5th Gen, iPad 9th Gen, iPad Pro) connected to the Host iPad.
The 14 songs we were rehearsing were all multitrack, but only 2 x stereo tracks or 2 x stereo tracks + 1 mono track.
All the MIDI event triggering was time-stamped (I think I recall an earlier bug report saying the MIDI events without a timestamp were not being sent?).
I had some local lyric sheets on my iPad and it correctly used the Host-pushed lyric sheet unless it found a matching local one.
I showed the band members the new Audio Regions feature (new, in that ST4 makes them visible on Client devices when using Network Sessions). They love it as a glancable cue in case of complete brain explosion. Unfortauntely more work for me! 🙂
The band members also seemed to accept without issue that rather than seeing the Playlist in left sidebar (as per ST3), they were seeing the Queue, in their Client network session.
So, all in all, very positive experience. Credit to you @peter for getting the ST4 beta this far, this quickly.