When you do the Remove Photo, do you also click on Delete from Disk?
Yes I do.
After I posted, I tried it again in a different file (I organize my photos
on my external drive by month and year). In the month of August file, I
can delete in Lightroom and it deletes from my hard drive. It appears to
only be happening in my September file, at least as far as I can tell now.
I created all of my file folders 2 months ago, so it isn't something I
It appears to only be happening in my September file,
Do you mean "September folder"?
Yes. I apologize
Sounds to me like you have the September folder set to READ only permissions, so change the permissions on the folder.