Deneb error duplicate signal name

Hi Anonymous, although the Vega team is working on bringing animation to Vega and Vega-Lite, it is not officially available yet, so Deneb is not able to use those features. However, you can implement animations using timers in Vega, but the level of effort involved is quite significant. 

The link below is an example where I'm doing zoom-on-click animations (a downloadable version of the .pbix is attached). The easing for the animations, as well as the resizing and positioning of all the nodes are recalculated upon each click. Currently there is no way to do this in Vega-Lite as timers are only currently available in Vega. 

https://community.fabric.microsoft.com/t5/Data-Stories-Gallery/Where-is-Everybody/m-p/3566465#M11602