Hey Leighzer. After some more testing have found that dropping sprites to anything other than maximum yields this error (for me and a few of my friends in our server):
Failed to load mods: File not found: Leighzeruraniumlogistics/graphics/entity/uranium-underground-belt/remnants/uranium-underground-belt-remnants.png
Mods to be disabled: *Leighzeruraniumlogistics (0.1.1).
Easy fix by turning sprites back up to max, but thought you'd like to know either way.
Thanks once again, throughput in our base has been increased substantially and has given us a reason to go nutty with uranium processing!