DasLight itself crashes sometimes right after start when loading a database/show, but this has become rare. Usually it is just ERA that crashes. After pushing the ERA button ERA splashes up and then crashes. Sometimes it becomes more stable after the 7th or 10th try, sometimes I have to restart DasLight.
I am using the DVC3 beta from July and the final version from December in parallel - the December version is not yet finally tested with all my current shows. And the crashes happen with both versions. Interfaces are DVC3 512 and DVC3 Gold.