How to set in game texture resolution to 8K?

HI, i’m still trying to load 16k texture but nothing of these modifications works. I’m using 4.18.3+gameworks version, i’ve modified the rhi.cpp file with MAX_TEXTURE_MIP_COUNT = 15 and all the .ini file. I’ll try with a standard version of the engine (4.21) hoping that works even if I need to make this works on a gameworks version