Room Volume limits just don't work

Roon Core Machine

N/A

Networking Gear & Setup Details

N/A

Connected Audio Devices

Pi and Hifiberry Amp HAT

Number of Tracks in Library

Not relevant

Description of Issue

I have a Raspberry Pi 3b+ with a Hifiberry Amp HAT. Every full reboot of the system Roon sets volume to 100% , my volume limit is set to 75% yet Roon clearly ignores this. Why is volume limiting not working it’s suppose to protect a system from this kind of thing.