When moving a bottom trace vertex that has another trace above it, the vertex will snap to the top layer trace and you can not position it correctly. Steps to reproduce bug: 1. Draw a 20mil trace on the bottom layer 2. Draw a 10mil trace on the top layer 3. Hide the top layer and switch to the bottom layer. 4. Drag the trace end vertex Results: Vertex will snap to hidden top layer trace and will not snap to grid at all when near making it impossible to do finer adjustments to traces. Expected results: Snap to grid only. Browser: Google Chrome, Version 62.0.3202.94 (Official Build) (64-bit)