Volume tool doesn't work
Since not so long ago the Volume tool in Logic Pro X has stopped working for me. I used to be able to double click an, for example, audio file to adjust the volume. Now, however, I can't seem to get this done. Does anybody know what I'm doing wrong? It could be just me, or maybe Logic itself. I'm curious!
Thanks in advance.
MacBook Pro, OS X Mountain Lion (10.8.4)