PS5 sound effects missing after 24h+ hours (including suspend)

[Abnaxos]

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Date & Time: 28, 29 May 2021
Frequency: Sometimes
World name: Twintania
Character name: Edane Senois @ Twintania
Class/Level: AST/80, RDM/59
Party or solo: both
Area and coordinates: everywhere (open world & instances)
Steps:
1. Play the game
2. Log out and put the PS5 to suspend mode (while on title screen)
3. Continue playing
4. After about 24 hours or more, sound effects start going missing. This includes battle/crafting sound effects, but also UI sound effects, movement, calling the mount, everything. It's just a few sounds in the beginning, but getting more and more until at some point, almost all sounds are missing. BGM seems not to be affected. I'm not sure how much you actually have to play, but since I'm on vacation, I'm currently playing a lot.

I started to experience this since 5.55 on PS5. I didn't observe it before.

Rebooting the console fixes it. I didn't try to restart only the game, I just reboot while I'm at it.

Connection Specs
- Type of internet connection/provider: Optical Fiber