Circle pad pro connection lost [MH4U]

[Aepoh]

System model:

[New 3DS XL]

SysNAND version (+emu/redNAND version if applicable):

[11.16.0-49U SysNAND]

Entrypoint (How/what you're using to boot Luma3DS):

[Boot9Strap]

Luma3DS version:

[v13.3]

Luma3DS configuration/options:

Default EmuNAND: ( )

Screen brightness: (4)

Splash: ( )

Splash duration: ( )

PIN lock: ( )

New 3DS CPU: (*)

Hbmenu autoboot: ( )

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Autoboot EmuNAND: ( )

Enable loading external FIRMs and modules: (*)

Enable game patching: (*)

Redirect app. syscore threads to core2: ( )

Show NAND or user string in System Settings: (*)

Show GBA boot screen in patched AGB_FIRM: ( )

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Explanation of the issue:
MH4U loses connection to the c stick (circle pad pro) when the system is closed and enters sleep mode.

https://gbatemp.net/threads/help-c-stick-disconnect-in-mh4u-on-n3ds-xl.593698/

Steps to reproduce:

1. Launch MH4U. Circle pad pro should initially connect.

2. Enter sleep mode and then reopen the system. There's a good chance the circle pad pro will disconnect and the C stick will no longer work.

Dump file (if applicable):