(I will contact IDM.)

For differences I cannot yet determine, UC (.39 and .44) cannot Save Result completely a Folder Compare. It does write the list of files it has compared, but stalls after that.

I am comparing two pairs of folders. These folders represent four versions of a PHP application. The first pair UC completed. The second pair, UC will not complete if there are sub-folders. (I haven't tried inter-swapping the pair.)