>>538277958
Download "XXMI-Launcher-Portable-v1.9.2.zip" from below
https://github.com/SpectrumQT/XXMI-Launcher/releases
Extract it to some folder outside of "C:\" and then run it to update. Be sure to unblock from firewall.
Don't put it inside your "Wuthering Waves" installation folder or "Program Files" folder, just put it somewhere like your "Desktop" or "Documents" folder.
Extract mods in the following folder:
XXMI-Launcher-Portable-v1.9.2\WWMI\Mods
After mods are installed, download "26fix-v05.rar" from below, It requires python to be installed:
https://gamebanana.com/tools/20358
Put it inside you mods folder and then run it. This will update all the mod installed to be compatible with the current version of the game. Because 2.6 changed a lot of hashes for the textures.