7.2 Download CRIMA1161E ERROR: Failed to find required installation files

I have downloaded ELM7.2 from

https://jazz.net/downloads/elm/releases/7.2
Repositories and More
2747.5 MB download link

Windows 11 Home
Version    25H2
OS build    26200.8037
Experience    Windows Feature Experience Pack 1000.26100.300.0

I unzipped it using 7zip 25.00 x64

I added it to IBM Installation manager 1.10.1.1 repositories list

Then try to install and I get a message starting with
CRIMA1161E ERROR: Failed to find required installation files

(I would copy the whole error message except that IBM Installation manager lets you select text from the error message and right-click  'copy' it but nothing gets copied to the clip board)

Anybody else experience the same?

The only resource I could find for the error was

https://www.ibm.com/support/pages/crima1161e-error-failed-find-required-installation-files?view=full

Cause
The installation repository files are corrupted.