If I insert a media card into the reader, LR starts and then crashes on the Import screen (thumbnails don't appear in the short time before this happens)
If I start LR on its own it survives until I either click import or insert a card like in the first example.
A few weeks ago a similar problem was caused by an update to the Nvidia GTX 1050Ti card in my laptop and I saw a connection. Installed the previous graphics driver and all was well. No such update has since occurred, but as a result the video driveer is not the mmost uo-to-date version.