Hello. I haven't used XFCE in almost a decade but I was installing it today on a neighbor's machine and we noticed when deleting a very large amount of file (for example, the contents of a firefox source tarball), the 'preparing to delete' dialog does not update when deleting actually starts. It keeps saying 'preparing to delete' or some similar text till the delete operation is over and then it disappears. There is no indication that deletion is in progress apart from disappearing files. This is with thunar 1.8.0
Thanks for the report. It's a known issue also present in 1.6.x that we hope to address soon. *** This bug has been marked as a duplicate of bug 14102 ***