Something has gone wrong with the GOES16 Upper Mississippi Valley Geocolor GIF Animations over the past several days. I noticed that my dashboard, which uses this Upper Mississippi Valley Geocolor GIF animation as the satellite view, was preventing the dashboard from loading promptly. Indeed loading the UMV GOES16 Geocolor GIF animation hangs at a certain point for me, so I reverted to the HAniS UMV Geocolor animation on my dashboard.
It appears that only the UMV Geocolor GIF animation is affected by this problem for some reason. In any event the HAniS UMV Geocolor animation displays far fewer images and seems more appropriate for my dashboard at this time.