Missing Textures Raspberry Pi 4 B Model, 4GB RAM

Hi, i am running OpenMW on a Raspberry Pi 4 B Model 4GB RAM, Debian RaspiOS Aarch64/ARM64. Original Game Files GOG, GOTY. runs perfectly well and fast. only problem is that there is no textures! there is only pink. in the menu area its all pink on start up, i spam the enter key and it brings me to the game. cursor is a small pink block. all textures are pink sky is loading up alright, buildings are pink, chimney smoke are pink cubes lol. again, all works great, id guess about 50 fps menu, head is pink but menu tab seem to be alright.

after searching online, i came across this post https://www.raspberrypi.org/forums/viewtopic.php?t=251874 same issue but on terminal, they included OPENMW_DECOMPRESS_TEXTURES=1 openmw this was needed because "The pi does not support the texture decompression that openmw uses", so for them, it fixed the pink problem. But not for me.

you see, i loaded up my terminal and typed the same command that they did on the post, but instead of pink, its all white!

i tried reformatting my pc (worked for me last time on another problem i had), only to result to the same problem. any ideas? i know it has to do with Raspian ( Debian Pi OS) but not actually the pi,because i loaded it up on another OS (Kali Linux Aarch64/ARM64) and the textures worked fine. but the FPS was truly sad.. id get about 15 - 20 FPS.. bearly playable. thank you in advanced