Pianoteq is not heard

Pianoteq has not been heard for weeks.
I load the layer regularly, select the preset, load it but even receiving the midi message, neither the audio nor the signal on the volume meter arrives.
I tried to search through the previous discussions but I could not understand where the problem lies and above all what to do to solve.

Pianoteq works fine for me. I am using the staging image 2210. Remember that a demo version of Pianoteq is provided with Zynthian which times out and goes silent after a while.

The problem is that it doesn’t work from the start. I also updated with the operating system of 25/09 / 2021. But nothing

Updates can fail. Burn a new SD with the staging image.