[Bug] NKRO distorts keymap on Drop CTRL board

Describe the Bug

When enabling NKRO (via the QK_MAGIC_TOGGLE_NKRO or QK_MAGIC_NKRO_ON Magic Keycode) the keyboard keymap gets distorted. For instance W types 5, X types K, \ toggles Caps lock (even though I have no Caps lock in my actual keymap!). Disabling NKRO brings the keymap back to normal but C, I, and Backspace stop functioning and everything else is typed as if caps lock is enabled while not actually enabled (Pressing shift doesn't do anything). Only a power cycle of the keyboard fixes this, as long as NKRO is off or not written to EEPROM before the power cycle.

Keyboard Used

massdrop/ctrl

Link to product page (if applicable)

https://drop.com/buy/drop-ctrl-mechanical-keyboard

Operating System

Arch Linux 64bit & NixOS 24.11 unstable

qmk doctor Output

Ψ QMK Doctor is checking your environment.
Ψ CLI version: 1.1.5
Ψ QMK home: /workspaces/qmk_firmware
Ψ Detected Linux (Debian GNU/Linux 11 (bullseye)).
⚠ Missing or outdated udev rules for 'atmel-dfu' boards. Run 'sudo cp /workspaces/qmk_firmware/util/udev/50-qmk.rules /etc/udev/rules.d/'.
⚠ Missing or outdated udev rules for 'kiibohd' boards. Run 'sudo cp /workspaces/qmk_firmware/util/udev/50-qmk.rules /etc/udev/rules.d/'.
⚠ Missing or outdated udev rules for 'stm32-dfu' boards. Run 'sudo cp /workspaces/qmk_firmware/util/udev/50-qmk.rules /etc/udev/rules.d/'.
⚠ Missing or outdated udev rules for 'apm32-dfu' boards. Run 'sudo cp /workspaces/qmk_firmware/util/udev/50-qmk.rules /etc/udev/rules.d/'.
⚠ Missing or outdated udev rules for 'gd32v-dfu' boards. Run 'sudo cp /workspaces/qmk_firmware/util/udev/50-qmk.rules /etc/udev/rules.d/'.
⚠ Missing or outdated udev rules for 'wb32-dfu' boards. Run 'sudo cp /workspaces/qmk_firmware/util/udev/50-qmk.rules /etc/udev/rules.d/'.
⚠ Missing or outdated udev rules for 'bootloadhid' boards. Run 'sudo cp /workspaces/qmk_firmware/util/udev/50-qmk.rules /etc/udev/rules.d/'.
⚠ Missing or outdated udev rules for 'usbasploader' boards. Run 'sudo cp /workspaces/qmk_firmware/util/udev/50-qmk.rules /etc/udev/rules.d/'.
⚠ Missing or outdated udev rules for 'usbtinyisp' boards. Run 'sudo cp /workspaces/qmk_firmware/util/udev/50-qmk.rules /etc/udev/rules.d/'.
⚠ Missing or outdated udev rules for 'md-boot' boards. Run 'sudo cp /workspaces/qmk_firmware/util/udev/50-qmk.rules /etc/udev/rules.d/'.
⚠ Missing or outdated udev rules for 'caterina' boards. Run 'sudo cp /workspaces/qmk_firmware/util/udev/50-qmk.rules /etc/udev/rules.d/'.
⚠ Missing or outdated udev rules for 'hid-bootloader' boards. Run 'sudo cp /workspaces/qmk_firmware/util/udev/50-qmk.rules /etc/udev/rules.d/'.
Ψ Testing userspace candidate: /workspaces/qmk_userspace -- Valid `qmk.json`
Ψ QMK userspace: /workspaces/qmk_userspace
Ψ Userspace enabled: True
Ψ Git branch: master
Ψ Repo version: 0.25.8
⚠ The official repository does not seem to be configured as git remote "upstream".
Ψ All dependencies are installed.
Ψ Found arm-none-eabi-gcc version 8.3.1
Ψ Found avr-gcc version 8.3.0
Ψ Found avrdude version 6.3-20171130
Ψ Found dfu-programmer version 0.6.1
Ψ Found dfu-util version 0.9
Ψ Submodules are up to date.
Ψ Submodule status:
Ψ - lib/chibios: 2024-02-17 19:20:06 +0000 --  (be44b3305)
Ψ - lib/chibios-contrib: 2024-04-03 20:39:24 +0800 --  (77cb0a4f)
Ψ - lib/googletest: 2021-06-11 06:37:43 -0700 --  (e2239ee6)
Ψ - lib/lufa: 2022-08-26 12:09:55 +1000 --  (549b97320)
Ψ - lib/vusb: 2022-06-13 09:18:17 +1000 --  (819dbc1)
Ψ - lib/printf: 2022-06-29 23:59:58 +0300 --  (c2e3b4e)
Ψ - lib/pico-sdk: 2023-02-12 20:19:37 +0100 --  (a3398d8)
Ψ - lib/lvgl: 2022-04-11 04:44:53 -0600 --  (e19410f8)
Ψ QMK is ready to go, but minor problems were found

Is AutoHotKey / Karabiner installed

• AutoHotKey (Windows)
• Karabiner (macOS)

Other keyboard-related software installed

None

Additional Context

I have recently upgraded my keyboards firmware from a 3 year old version (fd54992e1f65713a93115a0a1737e97d3e2d8522) to the latest commit. Everything worked fine with the old firmware.

My config is at https://github.com/Izumemori/qmk_userspace, but it also happens with the default keymap at commit 751fbd7.

The udev rules from the qmk doctor output shouldn't matter since I'm developing in a dev container.