[Bug] Unicode Map can't output Cyrillic characters with code 0x##0

Describe the Bug

Firmware compiles and flashes with no issues in QMK CLI, but on use these characters don't actually appear when typed:

• А: 0x0410
• Р: 0x0420
• а: 0x0430
• р: 0x0440

Keyboard Used

planck/rev7

Link to product page (if applicable)

No response

Operating System

macOS 12

qmk doctor Output

Ψ QMK Doctor is checking your environment.
Ψ CLI version: 1.1.5
Ψ QMK home: /Users/sailorfe/s/qmk_firmware
Ψ Detected macOS 12.7.6 (Intel).
Ψ Userspace enabled: False
Ψ Git branch: master
Ψ Repo version: 0.26.8
Ψ - Latest master: 2024-10-12 00:29:32 +0100 (11daef82e0) -- zsa/moonlander: Fix execution of user callback (#24475)
Ψ - Latest upstream/master: 2024-10-12 00:29:32 +0100 (11daef82e0) -- zsa/moonlander: Fix execution of user callback (#24475)
Ψ - Latest upstream/develop: None
Ψ - Common ancestor with upstream/master: 2024-10-12 00:29:32 +0100 (11daef82e0) -- zsa/moonlander: Fix execution of user callback (#24475)
Ψ - Common ancestor with upstream/develop: None
Ψ CLI installed in virtualenv.
Ψ All dependencies are installed.
Ψ Found arm-none-eabi-gcc version 8.5.0
Ψ Found avr-gcc version 8.5.0
Ψ Found avrdude version 8.0
Ψ Found dfu-programmer version 1.1.0
Ψ Found dfu-util version 0.11
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

Is AutoHotKey / Karabiner installed

• AutoHotKey (Windows)
• Karabiner (macOS)

Other keyboard-related software installed

No response

Additional Context

I have a 96-character unicode map of 64 Cyrillic characters and 32 alchemical glyphs that works perfectly except for Cyrillic А, а, Р, and р regardless of aliases under #define. The only common quirk between them is their unicodes:

• А: 0x0410
• Р: 0x0420
• а: 0x0430
• р: 0x0440

At first I thought it was just their ending in 0, but 0x2650 (♐) works fine. The main reason I'm using a unicode map instead of #include "russian_keymap.h" is because with that method RU_YO outputs KC_LCBR and KC_RCBR.

My map is here: kdlrose/planck-keymaps.