Probably won't help, but when mine gets hung up on the "Loading Tiles" issue, I just stop and re-start the bot and 9 times out of 10 it works perfectly fine (as much as can be expected).
[12:10:55 AM:472] StyxWoW.AreaManager.CurrentGrindArea is null
[12:13:47 AM:527] Updating repair cost for current equipped items. New value: [1g43s12c]