The files are physically duplicated in the paths shown in the error report. The duplicates do not harm anything, but something is wrong with your library organization if you are getting this. All of the versions of the materials suggest that someone in your firm has created some custom materials and got copy-happy in placing them in the library...
Karl
One of the forum moderators
AC 28 USA and earlier • macOS Sonoma 14.7.1, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB