Avid Series Owners note that Avid have released an update for Eucon 3. This is what Avid say about the update…

Software installer that provides various stability fixes as well as more reliable DAW connection on start up. EUCON 3.0.1 also provides improved operation with removing and hiding tracks.

Test it out and see how it performs for you. Does it resolve any of your issues? Thanks to Kevin Darbyshire-Bryant for lifting this one above the noise. There is a thread on the DUC and Avid are asking for feedback from Artist Series users who are having trouble.