[Bug][Split keyboard][RGB] When RGB wakes up from Sleep, only Master RGB wakes up until a key on the Slave half is pressed

Describe the Bug

Hi all

• I'm using a Boardsource Unicorne (so split keyboard)
• In my config.h I have these two commands
• #define RGB_MATRIX_TIMEOUT 60000
• #define SPLIT_RGB_MATRIX_ENABLE
• The RGB sleep/ timeout works as expected, on both halves
• (I even get the caps word change in RGB to reflect on both sides , so I know the two halves are in sync)
• However, when RGB sleep is active and I press a key on the Master half (which is the left side for me), the Master RGB wakes up , but the right / Slave RGB does not wake up. Until I press a key on the Slave half
• How can I fix this? Is there anything wrong with my setup?
• My files can be found here - https://github.com/kmsingh-git/qmk_firmware/tree/master/keyboards/boardsource/unicorne . The keymap is under keymaps/mvrck_keymap_unicorne_6x3 if that's relevant

Keyboard Used

boardsource/unicorne

Link to product page (if applicable)

No response

Operating System

No response

qmk doctor Output

Is AutoHotKey / Karabiner installed

• AutoHotKey (Windows)
• Karabiner (macOS)

Other keyboard-related software installed

No response

Additional Context

No response