Weird Shift key problem

I run Windows 11 beta channel on two different Mac laptops (Parallels VM), one Intel and one M1 (Apple). But I have seen similar problems reported on Windows install that are not in a Mac VM. They have not been able to isolate it, I have - at least one instance.

In Windows 11, if I hold the shift key down and type the letter A, and then any other letter while still holding the shift key down, the letter following the A is lower case! It happens in all apps. I have searched everywhere for something being done with Shift-A, but found nothing.

Any ideas? What happens if you type say, Shift-AB (or hold Shift down and type A and any other letter) - does the second letter appear as upper or lower case?

Try running a Clean Boot on the problem OS, and see if the issue persists. If it solves the issue, then you have conflict with a background program.
To perform a Clean Boot, follow this Eleven Forum's tutorial:

When that tutorial needs a refresh - Task Manager looks nothing like that now! Anyway - I figured it out, clean booted (I actually had no non-MS stuff, but in startup I did disable all incl. ones like Edge) - and same problem occurs.

@iko22 - what happens if you do Shift A and a letter - upper or lower case?

Sorry for the delay in replying.

If a Clean Boot has not fixed the issue (plus, as you say, that it only occurs on the Window's VMs) then it is likely somewhere in the OS.

If I understand the problem, if you press shift+'a' followed by shift+(any other key) the second key will appear in lower case.

I cannot replicate the issue as I do not have a beta build of Windows 11.

If I understand correctly, if you press shift+'s' followed by shift+'a', you get "SA"?
And, if you press CAPS LOCK, then press 'a' followed by 'b', you get "AB"?

Thanks @iko22 for the reply! Here is what I get:

CAPS LOCK press A, press B -- I get AB
Hold Shift, Press A, Press B, let up Shift - I get Ab
Hold Shift, Press A, let up shift, Hold Shift, Press B, let up Shift - I get AB

I have another idea.

You could try these suggestions from Parallels, on the subject of VM keyboard layout:

See if the Resolution or suggested Workaround alters the issue in any way.

It doesn't look the same as that @iko22 as that was 2015, but both Windows and Mac are English only. Also, this problem does not occur in the Mac environment on my 2 laptops. Thanks for the suggestion though!