Key Remapper no longer allows binding a key to only a modifier

[Willbly]

Microsoft PowerToys version

0.81.1

Installation method

Microsoft Store

Running as admin

No

Area(s) with issue?

Keyboard Manager

Steps to reproduce

Create a new key remapping from any key to any modifier only.

When saving, this error now appears.

Previously this binding worked fine (around 0.71.x I believe), however once I updated and opened this menu, the remapping stopped working.

✔️ Expected Behavior

The chosen key to become a modifier key.

❌ Actual Behavior

The key does not remap and a warning is displayed upon saving.

Other Software

No response

[github-actions]

Hi I'm an AI powered bot that finds similar issues based off the issue title.

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it. Thank you!

Open similar issues:

• Keyboard Manager can't remap Caps Lock to Ctrl+Shift+Alt (#21369), similarity score: 0.76

Closed similar issues:

• Remap Keys: "Warning: the follow (sic) keys do not have assignments" when any key is used (#24084), similarity score: 0.77
• Remap Keys: "Warning: the following keys do not have assignments:" bug is back in v. 0.81.1 (#33402), similarity score: 0.77

Note: You can give me feedback by thumbs upping or thumbs downing this comment.

[Willbly]

Issue #21369 is a more specific case of this error.
Issue #24084 contains the same issue but was closed because the author never responded to a request to know if the warning or the incorrect behaviour was the point of the issue.

I only care about the key not actually remapping, I have no stake in the discussion around the orphaned keys warning.

[firstnevyn]

Also not having a capslock at all.. is often the intent if you want it to be an additional control. so the warning should be ignorable.

[firstnevyn]

This appears to be the related bug #33402 working in 8.3 for me.