Yeah I have this happen all the time. I did recently fix it but today it's just a ***** again. Of the three DAW's I have use cakewalk is the only one I've gotten this issue with. It's like the whole thing just grinds to a halt. I seem to only see it happen when recording instruments, but then I dont do a lot of midi.
To be honest I think I'm just gonna pay a pro to come set up my studio. The amount of issues Im having with daw's is utterly defeating lol and I dont want to go back to audacity, it's amazingly simple to use but the finished quality is slightly muted I find.