Are there any known issues with the original iPad mini? I have the original retina iPad mini, and Infuse 4 displays the correct artwork on correctly on my iPad mini. But when i try and set my wifes up connecting to the same drive ( a wd wireless passport pro) she has no artwork, just default folder images.
Are you connecting via UPnP/DLNA on the non-working mini? Unfortunately external images won’t be available to apps like Infuse when streaming via either of these methods.
You can double-check how you’re connecting through Add Files > Saved Shares > Share Name (info icon).