mapview::sync() not working with flexdashboard

[21satspleb]

Is there an workaround for that specific problem?
https://stackoverflow.com/questions/52102581/mapviewsync-not-working-with-flexdashboard

[paragemini]

Hey - I just found this package and have not tried using flexdashboard, but I used this example in flexdashboard and it works great with 2 maps. I have not tried using three of 4 maps.

Page 11 of this pdf can help you
https://cran.r-project.org/web/packages/leaflet.minicharts/leaflet.minicharts.pdf