The build seemed to go OK it didn't hang or crash in any way it appeared to run just like the previous successful setups I've done from the earlier versions of the script, I have also tried running the script on the light version of Raspbian Buster with the same result.
I have also re run on a Pi 4 one of the previous scripts from a backup I have and it has installed fine, all the cameras are fully installed
see below the error message from the cmake command
CMake Error at CMakeLists.txt:364 (add_subdirectory):
add_subdirectory given source "asi-common" which is not an existing
CMake Error at cmake_modules/FindASI.cmake:68 (message):
ASI not found. Please install libasi
Call Stack (most recent call first):
-- Configuring incomplete, errors occurred!
See also "/home/pi/AstroRoot/indi-build/3rdparty-Drivers/CMakeFiles/CMakeOutput.log".
See also "/home/pi/AstroRoot/indi-build/3rdparty-Drivers/CMakeFiles/CMakeError.log".