New folders of files never appeared in catalog (but have been imported - it says)
I loaded three days worth of drone images into my (not Lightroom's) catalog of images (managed by IMatch) but only the third day (29 images) shows up in the Lightroom Library navigator. Heretofore, every time I have added new images, they showed up immediately (see below).
I can look at a whole-screen version of my Lightroom catalog and see those missing images, but they are grayed-out. A pop-up says that they have been imported.
While working with last weekend's stuff, I found a lost chip from an earlier trip, read it into the existing catalog, and those images became immediately available!