In the farming area south of Eldevin City there are two farming plots stuck - the stats stay the same. Mine froze just now while I was turning in dailies next to it. I'm not sure if that has any connection, and previously the plot died.
The plot can be unfrozen by watering it if it is your plot, and then it works like normal. I don't think it's exploitable because it seems to happen randomly, but if the mechanism for how it happened was figured out it could become exploitable because it keeps the time effect from destroying the plot.
Edited by Osprey, 13 February 2017 - 15:28.