I thought it was just me, that I must be doing something wrong, but... fortunately I also have a copy of X3 on this computer, and I can load the same project which was created in Platinum up into X3, and it loads, and everything is fine.
If I load this project up in Platinum now, any attempt to edit midi data in the piano roll view invokes massive lags and "Not Responding". Even trying to resize the piano roll view does that.
It's a large but not huge project: 27 tracks. Works fine in X3, and it wasn't even created in X3, so that is my workaround for now: go back to using X3, I guess.,
FTR, the DAW is on this hardware:
Asrock Z87, 32G DDR3 RAM @ 1600mhz
2 x 2TB Seagate barricudas @ 7200 RPM, + Intel disc acceleration on boot drive via 32GB SSD partition.,
Never had a problem like this before.
It has taken a while to load so many Kontakt instruments, and I have always got drop outs until they were fully loaded. That's normal stuff.
This is not normal. Windows like the piano roll view freeze (well, everything is affected), but it will play the thing back. Just don't try to change anything because it's like running X-windows over a modem ;)
Help?