Pro Tools 5.1 is losing I/O settings for tracks 17 and above.

This happens when you do a Save Session copy in, and then save it as a Pro Tools 5 session. Tracks 17 and above are set to no inputs and in some cases to no outputs when you reopen the session. In a system that has 3 888 I/Os or more and the session has 24 tracks or more. This can happen if the session was originally a 5.0 session and then was opened in 5.1, or it can happen if it is and new 5.1 session and then save session copy in, and save it as a Pro Tools 5 session. If you reopen it in Pro Tools 5.1 then the inputs and in some cases the outputs are set to no input/no output.If you open the same session in Pro Tools 5.0.1 it sets the inputs and outputs to bus31/bus32.You will have to reassign all the inputs and outputs on these tracks as necessary to get them to play or record.

Other Popular Articles:
• DAE error -11 when launching Pro Tools 5.1
• Pro Tools plays at an inconsistent speed or does not play at all when connected via Slave Clock BNC to a Mark of the Unicorn MIDI Timepiece AV (MTP AV).
• How do I toggle the clock output format on a MIDI Timepiece AV (MTP AV)?
• Getting DAE errors -9161, -9162 and/or -6046 when launching Pro Tools.Another symptom is that the Macintosh Operating System may be acting very sluggish, i.e. with every command you choose, such as "Open" from the File menu, you get the "tapping fingers" and the OS response is slow and delayed.
• DAE -6042 error at playback