With Lightroom Classic V11 (Windows 10), I can no longer drag and drop my photos to the Flickr publishing service. It looks like I'm dragging the images, but they do not appear in my Flickr collection. I am able to drag photos into the LR/Instagram plug in, but I get an error message when I try to publish.
Please post your System Information as Lightroom Classic (LrC) reports it. In LrC click on Help, then System Info, then Copy. Paste that information into a reply. Please present all information from first line down to and including Plug-in Info. Info after Plug-in info can be cut as that is just so much dead space to us non-Techs.