Images not being shown correctly from network storage

I am experiencing a problem with the images from my network storage (home device).

On occasions, the display shows duplicates, other times only shows a lower number of images than actually exist.

I have also experienced situations when a screen refresh gives random numbers from too few to too many images.

It happens on my iMac downstairs running OS Monterey and also on my Macbook Pro running OS Big Sur upstairs.

I also notice that if I copy the folder to either desktop, Bridge works without fault.

I attach some screenshots to illustrate it, hope that helps.