[YYR123]

Well......this does sound like a mystery

You didn’t mention your Hard drive types but since it’s fine with the other session I wouldn’t imagine it was that.

I am guessing that it is related to midi latency, b/c that is the only latency not accounted for with the HDX card.

Make all midi tracks inactive, reboot the computer, restart PT....check your system....what happens when trying to record ?

Actually just thought of something else——PT used to have a big problem with routing aux tracks to aux tracks to other aux tracks

Check your routing and make sure it’s the simplest it can be....make in active any aux tracks more than 2 levels deep.

Restart PT and try to record again.


Cheers