Builded images failing at twrp as corrupted

Hello all! Happy new year, really hope it blasts for us all!

Just a heads up,

i've always liked building my nethunter images be it for angler or hammerhead (haven't tried for ticwatch yet)
but never had a problem (even modified sometimes the build.py to reflect a more recent version of the apps from the NetHunter Store anyway...

https://www.kali.org/docs/nethunter/building-nethunter/

no big mistery, i like to remove the branding (even tho i install the wallpaper and the bootanim.zip afterwards) and to make the kernel apart (so that way i flash it right way after the android, opengapps, magisk and end up booting just one kernel in the end)

tl-dr
the images are failing at twrp saying they're corrupted even tho digest matched and i can extract them with Engrampa frontend with no problems.
One thing i noticed the file system image zip file isn't being downloaded (path problems probably) and i even tried downloading the file myself from
$ wget https://kali.download/nethunter-imag...64-full.tar.xz
but no dice, so just a heads up it might be funky.

It was an 6p Angler with a recent cloned repository. (as in up to date for sure) it was a 2021.4 i was trying to build.
Kernel is OK tho.
Thank you.
--



EDIT:
rootfs file at https://kali.download/nethunter-imag...2021.4/rootfs/ looks like didn't got cleaned up.
there are .debs (1.5GB) in /var/cache/apt/archives/ (probably reason the 2021.4 file is twice the size of last version 2021.3)

Now i'm extracting the rootfs that comes with prebuilt 2021.4 inside my kali-nethunter-project/nethunter-installer/rootfs folder, hope it fixes it