I may have discovered the reason the spots seem to stall. I occasionally have been having trouble with the date and time randomly changing in my computer. Not sure why but it does. Just a bit ago I found the date and time were back in 2000 which may account for the problem. Now that I have observed this possible affect, I might have an explanation if it happens again.
I am not sure the reason this happens because I use Tardis to set the date/time every half hour. There may be more than one problem associated with the mysterious date/time change as it might stall Tardis too. Not sure. Thanks for the inputs/suggestions. 73, Charlie, W0YG..>>
