Elements 15 does not keep track of current photo numbers just processed.

Jim,

First never mention your e-mail in a public forum; that's against the rules because it's the best way to get a flood of spam and no useful answer (this is a user to user forum).

papashroom  wrote With other versions of elements they have kept track of the last few photo's I have worked on.  Elements 15 is not doing that.

Yes, unfortunately, that's a bug which is specific to Elements 15. It has been corrected in the current 2018 version.

Recently Edited Files ... stopped working

Also with camera RAW I have to use Adone DNG. Does any one have a solutio n to that.

FAQ: Will Photoshop Elements work with my camera, or Why won't my raw files open?

That means that your camera is probably too new for PSE15.

Look at the two links to see the ACR plugin version necessary for your camera and which Elements version supports that ACR version. Elements 2018 can be updated up to version 10.2, not yet version 10.3.