After nine months of it working fine, my metronome suddenly stopped working. I tried everything, but couldn't get it back.
I did a lot of internet searches and discovered that this is a problem that many people have had with Sonar over the years. But none of the posts offered an answer that solved my problem. And it's a HUGE deal to me to have a functioning metronome. So I solved it myself. I'm posting this so that when somebody else has this problem they might find this and do what I did.
It's simple. I loaded an old piece of music and saw that the metronome worked fine on it. I then deleted all the tracks and saved the file as BLANK. And that's what I start each new piece with.
Hope this is helpful.