My SD card reader stopped functioning; perhaps after a Windows 10 update since another SD card reader also failed to be recognized. I reverted to using a cable connection to the camera (Canon SX260). Windows 10 recognized the directory presented by the camera (appears as a portable device rather than as a USB removable storage device). Using the Ingest Folders/Add menu, I could see/select the directory, but after clicking Select Folder, the directory does not appear in Source Paths list. Thinking this might be a Windows 10 problem, I tried the procedure on my Windows 7 machine, but the same problem occurred. To test if this were camera specific, I tried it on a Nikon Coolpix P610 and it too failed. However, using a Sony CyberShot WX350, I was able to add an image folder to the list. I never completed the ingest assuming that if I could add a directory, it would work.
For the time being I am using drag and drop within Windows to transfer photos, but it would be useful to use the PM ingest to consolidate directories into a single directory.
I am on the latest version of PM5.0.