Click image for larger version. 

Name:	2017_01_19_09_34_451.png 
Views:	3 
Size:	73.6 KB 
ID:	117667
Click image for larger version. 

Name:	2017_01_19_09_35_082.png 
Views:	5 
Size:	175.2 KB 
ID:	117668
Click image for larger version. 

Name:	2017_01_19_09_35_483.png 
Views:	3 
Size:	107.9 KB 
ID:	117669

1 thing it does is the first time a folder with many files is opened, it will hang with the blue circle mouse pointer and system interaction pauses while this is happening, takes about 10 - 20 seconds to process.
It's obviously blocking a processing queue.