File not discoverable by Mezzmo to add

Noticed originally when I tried to add a folder to Mezzmo that has about 7-8 subfolders, only 2 subfolders were added. These subfolders with files have videos that reside on an internal D drive. They have always resided there and are discoverable when viewing under my documents section for the computer. However, when I go to the "Add folder" to Mezzmo, they are not seen, only 2 of them.

I looked under properties for those files on D drive as had been mentioned here and made sure the security did not show "system". It currently says "everyone" and there are no limitations.

In trouble shooting, I pulled one of the files not seen under the folder and put in a different folder on the D drive and it was discoverable by Mezzmo under the new folder. So I then moved it back to the original folder, and it was not visible.

I could move all of the files to a new folder I guess and then add that new folder but I'm curious as to why this is a problem.

I am running Win 10 Pro. Running Mezzmo 6.0.6.0

Any thoughts as to why this is occurring?

Never mind. Found mistake and embarrassed but file path was not correct. Did some recent work on computer with upgrades and this was issue.