Apple Logic Pro /LogicExpress Discussion

Thanks for the tips, which taught me some new things, and I finally  
got there in the end. I had a muted track that wasn't visible in  
arrange or mixer, but in mixer when I chose to show all strips, it  
appeared. Then I clicked to show it in the arranger and it re- 
appeared. It was an empty channel in any case, so I deleted it and  
everything is back to normal.

Got the answer here

https://www.macprovideo.com/forum/logic/logic-pro-express&id=10365&sid=0

which might be a useful source of info for problem solving

thanks again

Andy B