Import failed midway through, how to synchronize folder to import remaining images?

i have 60,000 remaining images in various subfolders add. when right-click on folder , choose synchronize folder, detects these images. however, after few minutes of activity (with thhe status bar reading "synchronizing folder "my photography"), lr reads "there no images add"

these remaining subfolders not appear in main  photography folder, synchronization isn't happening should.

 

i not sure need here complete process.

if first time using lightroom, start new catalog , import again, in small batches, folder folder.

 

if isn't option, reason type of synchronization fails because photos imported lightroom, lightroom thinks in different folder think in.

 

to find these photos in lightroom, follow of these 4 steps in order:

 

1.   in lightroom library module, on left, under catalog, click on photographs

2.   turn off filters (ctrl-l once or twice)

3.   turn off stacking (photo->stacking->expand stacks)

4.   search @ least 1 of these photos file name using lightroom filter bar

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