Errorcode0 SPP5.3.2 W7

For the past couple of days none of my version of SPP5.x will save a file!  (Progress bar for the save process doesn't even begin, and once an attempt to save fails the save button becomes inoperative.)

However, just before posting I attempted to save to a different folder (with many fewer items in it) and things were back to normal.

An older version of SPP would save to the first folder, so perhaps this is a 'feature' of SPP added out of concern for Merrill camera file sizes.