Cannot save image in Sharpen AI v2.0.5

I have an older iMac running High Sierra v.10.13.6
I initially installed Sharpen AI v2.0.3 which got upgraded to v2.0.5
I no longer get the “Save Image As” dialog box whether Im processing Tiffs of Jpgs. Nor do the save files have the suffix applied as checked in Preferences.
Whats going on?