Grouping function won't work... "Group (no connection)"

[lakecityransom]

When you right click folders to group it will say "Group (no connection)" in hollowed out text. Why is this?

I deleted the install folder and the application data folder where cache and etc. are stored.

Somehow it knows what I had selected as folders previously, even though these 2 file areas are deleted and reinstalled. Something else is out there.

[Admin]

grouping in your version work only then network connection available, network tab.

[lakecityransom]

I see now that it was to force the old versions not to work in order to make 'premium' for-profit versions in the future. 

Well it's your prerogative to chase cash, but I must say I have absolutely no use for similarity anymore without a grouping feature. The freeware will inherently have a bug where A-B B-A comparisons will exist in the list always. This is really disappointing, many people are not aware of this and will end up deleting all copies they have of many songs if they try to delete many songs on the list at the same time.

The only way it works correctly is to do as I detailed before and delete 1 result at a time and let the list refresh to remove the inverse further down the list. However, it is stressful as you are comparing 'keep' MP3s with other 'keep' MP3s in your finalized folder and they could match each other and you have to carefully check each comparison in the list.