midi groove clipping drop

Getting back into Sonar, been a user since day one, here is what is happening. I record a rift in midi, select groove clip, drag it thru the next couple of measures, play it back and all the notes play except for the first of each clip. What am I doing wrong? thanks for reading this. Never had this issue before, worked fine in X3, upgraded to Platinum and using a new project. Windows 10

Hi. How many in / out do you need?
If not as many as in the 1010, I would suggest looking at a 2nd hand RME Babyface. Rock solid drivers, and low latency. They are also very good at supporting older devices, so you could look at older versions as well.
If you need that sort of amount, I'd suggest Focusrite Scarlett / Saffire, depending on using USB or FW.
Others might have better ideas.
All the best.