Updating to version 0.6.4.5 did resolve this issue for me. Thanks for the help!
I am running Windows 10 - and the version number I am playing is 0.6.4.2.I also noticed that the food resource gathering (bushes and farms) are the most affected by this.
Loving the game - having a serious issue however with my villagers getting stuck returning resources back to the Village Centre. Some villagers will drop off resources and return to work however, I would say at least 50% of my workforce gets stuck.