DO NOT REPORT AN ISSUE IF YOU HAVEN'T TESTED THE ISSUE WITH THE LATEST VERSION IN CURSEFORGE
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Industrial Foregoing Version:
industrial-foregoing-1.19.2-3.3.2.2-4
Titanium Version:
titanium-1.19.2-3.7.2-26
Crashlog If Applicable (Upload to pastebin/gist):
n/a

In both Fancy and Fabulous graphics settings, the Mob Duplicator doesn't render any working area. You can toggle the button on or off, nothing is rendered. Without any range upgrades, it should be rendering a working area of at least a one block column.