I wanted to report that after updating LR to the 7.2 release, I was beginning to wonder if I was going to be able to use it. It took a much longer time to appear on the screen and there was a small window that kept appearing for a while after starting saying something about another instance of something running and asking if I want to switch but there was no other instance of LR running. After starting it and closing it several times, the small window finally did not appear.
Once I got past that hurdle, I clicked on Import and it hung or was taking a long time to do something. I closed it and I got a message saying something that it was reporting a problem to Microsoft. I restarted it and it did the same thing, although this time I let LR run in the background while I did some thing else for a while. When I came to the program, it was in Import mode this time and seemed to act normally. I canceled the Import selected it again and it has since then appeared to act normally.
Upon inserting a SD card, LR did not go into Import mode as it did before so I checked to see if the "Show Import dialog when a memory card is detected" was selected and it was not again! I believe every time LR has been updated, the box is unchecked by default. After selecting the option though, LR does not go into the Import mode.
I am able to Import and adjust photos okay but haven't done much else yet.
I have had Various Import/SD card issues for the last several years and it would be nice if they were fixed soon! I have an unresolved SD card issue related case open now. It was not fully resolved on 2/5/18 and I was told that I would be called back with 24 hours about the issue but I was not and am still waiting for a call back!