I upgraded from Windows 10 to Windows 11 by getting a whole new machine.  I downloaded Enterprise Developer 8.0 and Patch 18 on top of Visual Studio 2019 and tried to build a few programs.  The few I've tried all failed - most but not all of the copybooks can't be located.  What is happening here?  I've never had a problem with previous upgrades, with of Windows versions or more often Micro Focus.

Are you compiling from a VC command prompt or building projects / solutions withing the IDE ?

If you are using projects, are the copy files visible when the source code is loaded into the text editor?

when the project is loaded only 4 out of a score of copybooks are visible

I am building withing the IDE, well trying to

Are you able to open a support case - if so, flag it for my attention?

Can you check the Copybooks tab in properties for the project and ensure the path to the copy files is set?