Difference in the behaviour of beagle bone black industrial while changing the uEnvt text file(uncommeting the disable uboot overlay video)

Issue I had faced, when I had brought Beagle bone Industrial at last month May 2025 and I configure the gpio pin from 70 to 76 as Digital Input, but gpio pin from 70 to 76 not working as DI. It didn’t show correct(cat value at /sys/class/gpio/gpio76)
Digital input value 1 or 0 when a voltage of 3.3 or 3 V changed/applied

But when I brought the beagle bone black industrial on last year, I can’t face the issue,
Also the Debian image, kernel version for both are same 4.19.94-ti-r42

This issue was solved by uncommeting the disable uboot overlay video in uEnv.txt file

But doing the same doesn’t allow to boot on the beagle bone black industrial I bought last year.

Why this difference causes