Its a visual bug/glitch thats been present for quite a long time (at least since v7). It was confirmed but unfortunatelly never fixed. It randomly appears when editing crossfades.
Two links from 2015 and 2016
Its a visual bug/glitch thats been present for quite a long time (at least since v7). It was confirmed but unfortunatelly never fixed. It randomly appears when editing crossfades.
Two links from 2015 and 2016