Problems updating firmware to the latest version

Hello everyone,

I'm new to the exciting world of VESC Project. I recently purchased two Flipsky 75200 controllers. I've been playing around with them and managed to get the motors working, but today I discovered how to update the firmware version, as it indicated that there was a new version available.

To my surprise, after updating them, I can no longer set the maximum input voltage beyond 72V, even though I have a 20S battery that reaches 84V.

Does anyone know why this is happening and how to fix it?

Thank you very much in advance.