Deleting folders containing unrecognized files

[Stuntflyer]

The folder that I was deleting here did contain the .xmp file shown in the screen shot. Can or better yet should IMatch be set up to recognize this xmp file?

[Mario]

IMatch automatically recognizes XMP sidecar files of course.

The most likely reason for this warning are some orphan XMP files left by some other software.
XMP files without a matching image indexed by your database that is.

Follow IMatch's advice and check the folder.
If you sure it and all files contained within it can be deleted, do so.

[Stuntflyer]

Thanks, I will do that.