For the INT version of the 6000 preview build the download gives a wrong link which leads to the UKI update.
Replace UKI with INT at the download address or use this:
https://gsdownloads.graphisoft.com/cdn/ftp/techsupport/downloads/ac26/Archicad-26-INT-Update-6000-1....
Botonis Botonakis Civil Engineer, Enviromental Design MSc., BIM Manager for BS ArhitectsVR
Company or personal websiteArchicad 27. Windows 11. Intel Xeon 2699x2,64 GB RAM, Nvidia 3080Ti. 2 Monitors.