Hi,
This is a minor known issue with how FMOD Studio stores strings internally - if you’re interested, the issue is explained in more detail here. Unfortunately, I can’t offer a workaround, but for your purposes it should be a purely cosmetic issue as FMOD’s path lookup is case-insensitive.
If you are running into issue with the event path not resolving properly when you try to use it in Unity, if possible could I get you to provide a screenshot of all events contained in ./SFX/MiniGameWash and in the bank your event is assigned? Additionally, could I get your FMOD Studio, FMOD Unity, and Unity version numbers?