syncWith() causes maps freeze #10

Truly awesome package by the way!

The following code creates the synced maps, but after panning around for 5-10 seconds, they freeze. This happens in the preview window and in a browser.

library(leaflet)
library(leaflet.minicharts)
library(manipulateWidget)

map1 <- leaflet() %>% addTiles() %>% syncWith("maps")
map2 <- leaflet() %>% addTiles() %>% syncWith("maps")

combineWidgets(map1, map2)

It looks like syncing packages have been re-organized into a package called leafsync. I can sync basic maps using leafsync without any freezing, but any minicharts don't pan with the map. Thanks for any help you can provide.